[POO] Changes (#69)
[POO] ATP1 added --> Exercise made in Codecheck [POO] Removed tp_codecheck --> Didn't really have too much there and not worth keeping around [POO] Code reformat --> Optimized and reformated code for all directories in source
This commit is contained in:
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GPG Key ID:
DFCD48E3F420DB42
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@ -1,4 +1,5 @@
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package aula01;
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import java.util.Scanner;
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public class KmToMiles {
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@ -1,4 +1,5 @@
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package aula01;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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@ -2,6 +2,7 @@ package aula02;
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// Código da package utils disponível em
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// https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/poo/src/utils
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import utils.UserInput;
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import java.util.Scanner;
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@ -2,6 +2,7 @@ package aula02;
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// Código da package utils disponível em
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// https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/poo/src/utils
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import utils.UserInput;
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import java.util.Scanner;
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@ -2,6 +2,7 @@ package aula02;
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// Código da package utils disponível em
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// https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/poo/src/utils
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import utils.UserInput;
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import java.util.Scanner;
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@ -2,6 +2,7 @@ package aula02;
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// Código da package utils disponível em
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// https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/poo/src/utils
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import utils.UserInput;
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import java.util.Scanner;
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@ -2,6 +2,7 @@ package aula02;
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// Código da package utils disponível em
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// https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/poo/src/utils
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import utils.UserInput;
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import java.util.Scanner;
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@ -2,6 +2,7 @@ package aula02;
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// Código da package utils disponível em
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// https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/poo/src/utils
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import utils.UserInput;
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import java.util.Scanner;
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@ -103,9 +103,11 @@ class Property {
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public int getId() {
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return this.id;
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}
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public boolean isAvailable() {
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return this.availability;
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}
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public void setAvailability(boolean availability) {
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this.availability = availability;
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}
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@ -15,6 +15,27 @@ public class DateYMD {
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this.year = year;
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}
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static boolean validMonth(int month) {
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return month >= 1 && month <= 12;
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}
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static int monthDays(int month, int year) {
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if (!validMonth(month))
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return -1;
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int[] daysPerMonth = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
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if (month == 2 && isLeapYear(year))
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return 29;
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return daysPerMonth[month - 1];
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}
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static boolean isLeapYear(int year) {
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return year % 100 == 0 ? year % 400 == 0 : year % 4 == 0;
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}
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static boolean validDate(int day, int month, int year) {
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return day >= 1 && day <= monthDays(month, year);
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}
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public void set(int day, int month, int year) {
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if (!validDate(day, month, year))
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throw new IllegalArgumentException("Invalid date");
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@ -73,26 +94,6 @@ public class DateYMD {
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public String toString() {
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return String.format("%04d-%02d-%02d", this.year, this.month, this.day);
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}
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static boolean validMonth(int month) {
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return month >= 1 && month <= 12;
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}
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static int monthDays(int month, int year) {
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if (!validMonth(month))
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return -1;
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int[] daysPerMonth = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
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if (month == 2 && isLeapYear(year))
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return 29;
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return daysPerMonth[month - 1];
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}
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static boolean isLeapYear(int year) {
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return year % 100 == 0 ? year % 400 == 0 : year % 4 == 0;
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}
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static boolean validDate(int day, int month, int year) {
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return day >= 1 && day <= monthDays(month, year);
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}
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}
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class TestDateYMD {
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@ -19,6 +19,7 @@ public class Bolser extends Student{
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public Professor getSupervisor() {
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return this.supervisor;
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}
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public void setSupervisor(Professor supervisor) {
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if (supervisor == null) {
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throw new IllegalArgumentException("Supervisor cannot be null");
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@ -29,6 +30,7 @@ public class Bolser extends Student{
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public double getMonthlyAmount() {
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return this.monthlyAmount;
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}
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public void setMonthlyAmount(double monthlyAmount) {
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if (monthlyAmount < 0) {
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throw new IllegalArgumentException("Monthly amount cannot be negative");
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@ -18,6 +18,7 @@ public class Person {
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public String getName() {
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return this.name;
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}
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public void setName(String name) {
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if (name == null || name.isEmpty())
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throw new IllegalArgumentException("Name cannot be null or empty");
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@ -27,6 +28,7 @@ public class Person {
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public int getCc() {
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return this.cc;
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}
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public void setCc(int cc) {
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if (String.valueOf(cc).length() != 8)
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throw new IllegalArgumentException("CC must have 8 digits");
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@ -36,6 +38,7 @@ public class Person {
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public DateYMD getBirthDate() {
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return this.birthDate;
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}
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public void setBirthDate(DateYMD birthDate) {
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if (birthDate == null)
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throw new IllegalArgumentException("Birth date cannot be null");
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@ -15,6 +15,7 @@ public class Professor extends Person {
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public String getCategory() {
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return this.category;
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}
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public void setCategory(String category) {
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if (category == null || category.isEmpty())
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throw new IllegalArgumentException("Category cannot be null or empty");
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@ -26,6 +27,7 @@ public class Professor extends Person {
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public String getDepartment() {
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return this.department;
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}
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public void setDepartment(String department) {
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if (department == null || department.isEmpty())
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throw new IllegalArgumentException("Department cannot be null or empty");
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@ -5,9 +5,9 @@ import utils.DateYMD;
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import java.time.LocalDate;
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public class Student extends Person {
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public static int currentNMec = 100;
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private DateYMD registrationDate;
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private int nMec;
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public static int currentNMec = 100;
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public Student(String name, int cc, DateYMD birthDate, DateYMD registrationDate) {
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super(name, cc, birthDate);
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@ -22,6 +22,7 @@ public class Student extends Person {
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public int getNMec() {
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return this.nMec;
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}
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public void setNMec(int nMec) {
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this.nMec = nMec;
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}
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@ -29,6 +30,7 @@ public class Student extends Person {
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public DateYMD getRegistrationDate() {
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return this.registrationDate;
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}
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public void setRegistrationDate(DateYMD registrationDate) {
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LocalDate now = LocalDate.now();
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this.registrationDate = registrationDate == null ? new DateYMD(now.getDayOfMonth(), now.getMonthValue(), now.getYear()) : registrationDate;
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@ -3,13 +3,12 @@ package aula06.ex2;
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import aula06.ex1.Person;
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public class Contact {
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private static int currentId = 1;
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private final int id;
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private Person person;
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private String email;
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private String phone;
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private static int currentId = 1;
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public Contact(Person person, String email, String phone) {
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if ((email == null || email.isEmpty()) && (phone == null || phone.isEmpty()))
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throw new IllegalArgumentException("Either email or phone must be provided");
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@ -26,6 +25,7 @@ public class Contact {
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public Person getPerson() {
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return person;
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}
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public void setPerson(Person person) {
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if (person == null)
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throw new IllegalArgumentException("Person must be provided");
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@ -35,6 +35,7 @@ public class Contact {
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public String getEmail() {
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return email;
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}
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public void setEmail(String email) {
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if (!(email == null || email.isEmpty()) &&
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!email.matches("^[a-zA-Z_0-9.]+@[a-zA-Z_0-9.]+\\.[a-zA-Z_0-9]+$"))
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@ -45,6 +46,7 @@ public class Contact {
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public String getPhone() {
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return phone;
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}
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public void setPhone(String phone) {
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if (!(phone == null || phone.isEmpty()) &&
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!phone.matches("^9[0-9]{8}$"))
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@ -40,6 +40,7 @@ public class ContactList {
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System.out.print("> ");
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return sin.nextLine();
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}
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private static void addContact() {
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System.out.print("Insira o nome: ");
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String name = sin.nextLine();
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@ -69,6 +70,7 @@ public class ContactList {
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contacts = newContacts;
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}
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}
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private static void changeContact() {
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System.out.print("Insira o nome, email ou telefone do contacto que pretende alterar: ");
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String query = sin.nextLine();
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@ -7,12 +7,15 @@ public class Vector {
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public Vector() {
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this.vector = new int[0];
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}
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public Vector(int size) {
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this.vector = new int[size];
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}
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public Vector(int[] vector) {
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this.vector = vector;
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}
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public int[] getVector() {
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return vector;
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}
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@ -21,12 +24,14 @@ public class Vector {
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public int size() {
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return this.vector.length;
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}
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public boolean contains(int value) {
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for (int n : this.vector)
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if (n == value)
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return true;
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return false;
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}
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public int count(int value) {
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int count = 0;
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for (int n : this.vector)
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@ -43,6 +48,7 @@ public class Vector {
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aux[this.size()] = value;
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this.vector = aux;
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}
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public void remove(int value) {
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int[] aux = new int[this.size() - this.count(value)];
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int i = 0;
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@ -54,6 +60,7 @@ public class Vector {
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}
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this.vector = aux;
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}
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public void empty() {
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this.vector = new int[0];
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}
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@ -69,6 +76,7 @@ public class Vector {
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result.insert(n);
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return result;
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}
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public Vector subtract(Vector secondVector) {
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Vector result = new Vector();
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for (int n : this.vector)
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@ -76,6 +84,7 @@ public class Vector {
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result.insert(n);
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return result;
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}
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public Vector intersect(Vector secondVector) {
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Vector result = new Vector();
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for (int n : this.vector)
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public class VectorTest {
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public static void main(String[] args) {
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Vector c1 = new Vector();
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c1.insert(4); c1.insert(7); c1.insert(6); c1.insert(5);
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c1.insert(4);
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c1.insert(7);
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c1.insert(6);
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c1.insert(5);
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Vector c2 = new Vector();
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int[] test = {7, 3, 2, 5, 4, 6, 7};
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for (int el : test) c2.insert(el);
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c2.remove(3); c2.remove(5); c2.remove(6);
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c2.remove(3);
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c2.remove(5);
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c2.remove(6);
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System.out.println(c1);
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System.out.println(c2);
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@ -2,8 +2,12 @@ package aula07.ex1;
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public abstract class Shape {
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protected String color;
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public abstract boolean equals(Shape c2);
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public abstract String toString();
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public abstract double getArea();
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public abstract double getPerimeter();
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}
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@ -1,16 +1,6 @@
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package aula07.ex2;
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public abstract class Date {
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public abstract int getAbsDay();
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public abstract int getDay();
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public abstract int getMonth();
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public abstract int getYear();
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public abstract void increment();
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public abstract void decrement();
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public abstract void addDays(int days);
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public abstract void removeDays(int days);
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public static int monthDays(int month, int year) {
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if (!validMonth(month))
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return -1;
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@ -31,4 +21,20 @@ public abstract class Date {
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public static boolean isLeapYear(int year) {
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return year % 100 == 0 ? year % 400 == 0 : year % 4 == 0;
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}
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public abstract int getAbsDay();
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public abstract int getDay();
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public abstract int getMonth();
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public abstract int getYear();
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public abstract void increment();
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public abstract void decrement();
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public abstract void addDays(int days);
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public abstract void removeDays(int days);
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}
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@ -6,7 +6,8 @@ public class DateTest {
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public static void main(String[] args) {
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Scanner sin = new Scanner(System.in);
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mainLoop: while (true) {
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mainLoop:
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while (true) {
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System.out.print("Class to test (0-Quit;1-DateYMD;2-DateND): ");
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int classoption = sin.nextInt();
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@ -17,7 +18,8 @@ public class DateTest {
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}
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case 1 -> {
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DateYMD date = null;
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class1Loop: while (true) {
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class1Loop:
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while (true) {
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System.out.println("Date operations:");
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System.out.println("1 - Create date");
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System.out.println("2 - Show current date");
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@ -28,8 +30,9 @@ public class DateTest {
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System.out.print("Option: ");
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int option = sin.nextInt();
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if (option == 0)
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break class1Loop;
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class1Switch: switch (option) {
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break;
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class1Switch:
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switch (option) {
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case 1 -> {
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System.out.print("Day: ");
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int day = sin.nextInt();
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@ -43,21 +46,21 @@ public class DateTest {
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case 2 -> {
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if (date == null) {
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System.out.println("Date not created");
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break class1Switch;
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break;
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}
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System.out.println("Current date: " + date);
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}
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case 3 -> {
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if (date == null) {
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System.out.println("Date not created");
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break class1Switch;
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break;
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}
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System.out.println("Current date: " + new DateND(date.getAbsDay()));
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}
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case 4 -> {
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if (date == null) {
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System.out.println("Date not created");
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break class1Switch;
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break;
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}
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System.out.print("Number of days to increment date by: ");
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int daysToIncrement = sin.nextInt();
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|
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@ -67,7 +70,7 @@ public class DateTest {
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case 5 -> {
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if (date == null) {
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System.out.println("Date not created");
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break class1Switch;
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break;
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}
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System.out.print("Number of days to decremente date by: ");
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int daysToDecrement = sin.nextInt();
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@ -80,7 +83,8 @@ public class DateTest {
|
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}
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case 2 -> {
|
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DateND date = null;
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class2Loop: while (true) {
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class2Loop:
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while (true) {
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||||
System.out.println("Date operations:");
|
||||
System.out.println("1 - Create date");
|
||||
System.out.println("2 - Show current date");
|
||||
|
|
@ -91,8 +95,9 @@ public class DateTest {
|
|||
System.out.print("Option: ");
|
||||
int option = sin.nextInt();
|
||||
if (option == 0)
|
||||
break class2Loop;
|
||||
class2Switch: switch (option) {
|
||||
break;
|
||||
class2Switch:
|
||||
switch (option) {
|
||||
case 1 -> {
|
||||
System.out.print("Day: ");
|
||||
int day = sin.nextInt();
|
||||
|
|
@ -102,21 +107,21 @@ public class DateTest {
|
|||
case 2 -> {
|
||||
if (date == null) {
|
||||
System.out.println("Date not created");
|
||||
break class2Switch;
|
||||
break;
|
||||
}
|
||||
System.out.println("Current date: " + date);
|
||||
}
|
||||
case 3 -> {
|
||||
if (date == null) {
|
||||
System.out.println("Date not created");
|
||||
break class2Switch;
|
||||
break;
|
||||
}
|
||||
System.out.println("Current date: " + new DateYMD(date.getDay(), date.getMonth(), date.getYear()));
|
||||
}
|
||||
case 4 -> {
|
||||
if (date == null) {
|
||||
System.out.println("Date not created");
|
||||
break class2Switch;
|
||||
break;
|
||||
}
|
||||
System.out.print("Number of days to increment date by: ");
|
||||
int daysToIncrement = sin.nextInt();
|
||||
|
|
@ -126,7 +131,7 @@ public class DateTest {
|
|||
case 5 -> {
|
||||
if (date == null) {
|
||||
System.out.println("Date not created");
|
||||
break class2Switch;
|
||||
break;
|
||||
}
|
||||
System.out.print("Number of days to decremente date by: ");
|
||||
int daysToDecrement = sin.nextInt();
|
||||
|
|
|
|||
|
|
@ -3,10 +3,10 @@ package aula07.ex3;
|
|||
public class Game {
|
||||
private final Team team1;
|
||||
private final Team team2;
|
||||
private int team1Goals;
|
||||
private int team2Goals;
|
||||
private final Ball ball;
|
||||
private final double gameDuration;
|
||||
private int team1Goals;
|
||||
private int team2Goals;
|
||||
private double timeElapsed;
|
||||
|
||||
public Game(Team team1, Team team2, Ball ball, double gameDuration) {
|
||||
|
|
|
|||
|
|
@ -75,7 +75,8 @@ public class Main {
|
|||
System.out.println("3 - Adicionar golo");
|
||||
System.out.print("Opção: ");
|
||||
int option = Integer.parseInt(sin.nextLine());
|
||||
swit : switch (option) {
|
||||
swit:
|
||||
switch (option) {
|
||||
case 1 -> {
|
||||
System.out.print("Novo X: ");
|
||||
double x = Double.parseDouble(sin.nextLine());
|
||||
|
|
|
|||
|
|
@ -23,6 +23,7 @@ public class Robot extends MovableObject {
|
|||
public PlayerPosition getPlayerPosition() {
|
||||
return this.playerPosition;
|
||||
}
|
||||
|
||||
public void setPlayerPosition(PlayerPosition playerPosition) {
|
||||
this.playerPosition = playerPosition;
|
||||
}
|
||||
|
|
@ -30,6 +31,7 @@ public class Robot extends MovableObject {
|
|||
public int getGoalsScored() {
|
||||
return this.goalsScored;
|
||||
}
|
||||
|
||||
public void increaseGoalsScored() {
|
||||
this.goalsScored++;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,5 +2,6 @@ package aula08.ex1.Interfaces;
|
|||
|
||||
public interface IElectricVehicle {
|
||||
int currentBatteryLvl();
|
||||
|
||||
void charge(int percentage);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,5 +2,6 @@ package aula08.ex1.Interfaces;
|
|||
|
||||
public interface IFuelVehicle {
|
||||
int fuelLevel();
|
||||
|
||||
void fillTank(int level);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,6 +2,8 @@ package aula08.ex1.Interfaces;
|
|||
|
||||
public interface IKmTravelled {
|
||||
void trip(int km);
|
||||
|
||||
int lastTrip();
|
||||
|
||||
int totalDistance();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -64,13 +64,6 @@ public class Motorcycle extends Vehicle implements IFuelVehicle {
|
|||
public enum MotorcycleType {
|
||||
SPORT, TOURING;
|
||||
|
||||
public String toString() {
|
||||
return switch (this) {
|
||||
case SPORT -> "Sport";
|
||||
case TOURING -> "Touring";
|
||||
};
|
||||
}
|
||||
|
||||
public static MotorcycleType fromString(String s) {
|
||||
return switch (s) {
|
||||
case "SPORT", "Sport", "sport" -> SPORT;
|
||||
|
|
@ -78,5 +71,12 @@ public class Motorcycle extends Vehicle implements IFuelVehicle {
|
|||
default -> throw new IllegalArgumentException("Invalid MotorcycleType: " + s);
|
||||
};
|
||||
}
|
||||
|
||||
public String toString() {
|
||||
return switch (this) {
|
||||
case SPORT -> "Sport";
|
||||
case TOURING -> "Touring";
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -5,10 +5,10 @@ import aula08.ex2.Enums.AlimentOrigin;
|
|||
import java.util.Objects;
|
||||
|
||||
public abstract class Aliment {
|
||||
final AlimentOrigin alimentOrigin;
|
||||
double proteins;
|
||||
double calories;
|
||||
double weight;
|
||||
final AlimentOrigin alimentOrigin;
|
||||
|
||||
public Aliment(double proteins, double calories, double weight, AlimentOrigin alimentOrigin) {
|
||||
setProteins(proteins);
|
||||
|
|
@ -19,7 +19,7 @@ public abstract class Aliment {
|
|||
|
||||
public double getProteins() {
|
||||
return this.proteins;
|
||||
};
|
||||
}
|
||||
|
||||
public void setProteins(double proteins) {
|
||||
if (proteins <= 0)
|
||||
|
|
|
|||
|
|
@ -2,9 +2,14 @@ package aula08.ex3.Interfaces;
|
|||
|
||||
public interface IProduct {
|
||||
String getName();
|
||||
void setPrice(double price);
|
||||
|
||||
double getPrice();
|
||||
|
||||
void setPrice(double price);
|
||||
|
||||
int stock();
|
||||
|
||||
void addStock(int amount);
|
||||
|
||||
void removeStock(int amount);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -4,6 +4,8 @@ import aula08.ex3.Product;
|
|||
|
||||
public interface IPurchase {
|
||||
void addProduct(Product product, int amount);
|
||||
|
||||
void listProducts();
|
||||
|
||||
double getTotal();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -11,7 +11,8 @@ import java.util.Set;
|
|||
public class ALDemo {
|
||||
public static void main(String[] args) {
|
||||
ArrayList<Integer> c1 = new ArrayList<>();
|
||||
for(int i= 10; i<= 100; i+=10) c1.add(i);System.out.println("Size: "+ c1.size());
|
||||
for (int i = 10; i <= 100; i += 10) c1.add(i);
|
||||
System.out.println("Size: " + c1.size());
|
||||
|
||||
for (int i = 0; i < c1.size(); i++)
|
||||
System.out.println("Elemento: " + c1.get(i));
|
||||
|
|
|
|||
|
|
@ -67,8 +67,7 @@ public class PlaneManager {
|
|||
for (Plane plane : planes) {
|
||||
if (plane instanceof CommercialPlane && type.equals("commercial")) {
|
||||
System.out.println(plane);
|
||||
}
|
||||
else if (plane instanceof MilitaryPlane && type.equals("military")) {
|
||||
} else if (plane instanceof MilitaryPlane && type.equals("military")) {
|
||||
System.out.println(plane);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -57,8 +57,7 @@ public class PlaneTester {
|
|||
System.out.print("Enter the plane's crew members count: ");
|
||||
int crewMembersCount = Integer.parseInt(scanner.nextLine());
|
||||
planeManager.addPlane(new CommercialPlane(id, manufacturer, model, year, passengerCount, maxSpeed, crewMembersCount));
|
||||
}
|
||||
else if (type.equals("military")) {
|
||||
} else if (type.equals("military")) {
|
||||
System.out.print("Enter the plane's missile count: ");
|
||||
int missileCount = Integer.parseInt(scanner.nextLine());
|
||||
planeManager.addPlane(new MilitaryPlane(id, manufacturer, model, year, passengerCount, maxSpeed, missileCount));
|
||||
|
|
|
|||
|
|
@ -13,12 +13,29 @@ public class Book {
|
|||
this.setYear(year);
|
||||
}
|
||||
|
||||
public String getTitle() { return this.title; }
|
||||
public void setTitle(String title) { this.title = title; }
|
||||
public String getAuthor() { return this.author; }
|
||||
public void setAuthor(String author) { this.author = author; }
|
||||
public int getYear() { return this.year; }
|
||||
public void setYear(int year) { this.year = year; }
|
||||
public String getTitle() {
|
||||
return this.title;
|
||||
}
|
||||
|
||||
public void setTitle(String title) {
|
||||
this.title = title;
|
||||
}
|
||||
|
||||
public String getAuthor() {
|
||||
return this.author;
|
||||
}
|
||||
|
||||
public void setAuthor(String author) {
|
||||
this.author = author;
|
||||
}
|
||||
|
||||
public int getYear() {
|
||||
return this.year;
|
||||
}
|
||||
|
||||
public void setYear(int year) {
|
||||
this.year = year;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
|
|
|
|||
|
|
@ -15,6 +15,16 @@ public class FlightManager {
|
|||
private String delaysTable;
|
||||
private String flightsNTable;
|
||||
|
||||
private static Map<String, Integer> sortByValue(Map<String, Integer> unsortMap) {
|
||||
List<Map.Entry<String, Integer>> list = new LinkedList<>(unsortMap.entrySet());
|
||||
|
||||
// Sorting the list based on values
|
||||
list.sort((o1, o2) -> o2.getValue().compareTo(o1.getValue()) == 0
|
||||
? o2.getKey().compareTo(o1.getKey())
|
||||
: o2.getValue().compareTo(o1.getValue()));
|
||||
return list.stream().collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue, (a, b) -> b, LinkedHashMap::new));
|
||||
}
|
||||
|
||||
public void loadCompanies(String filename) {
|
||||
Scanner input;
|
||||
try {
|
||||
|
|
@ -127,14 +137,4 @@ public class FlightManager {
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
private static Map<String, Integer> sortByValue(Map<String, Integer> unsortMap) {
|
||||
List<Map.Entry<String, Integer>> list = new LinkedList<>(unsortMap.entrySet());
|
||||
|
||||
// Sorting the list based on values
|
||||
list.sort((o1, o2) -> o2.getValue().compareTo(o1.getValue()) == 0
|
||||
? o2.getKey().compareTo(o1.getKey())
|
||||
: o2.getValue().compareTo(o1.getValue()));
|
||||
return list.stream().collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue, (a, b) -> b, LinkedHashMap::new));
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -11,6 +11,14 @@ public class Time {
|
|||
this.minute = minute;
|
||||
}
|
||||
|
||||
public static int timeToMinsInt(Time time) {
|
||||
return time.hour() * 60 + time.minute();
|
||||
}
|
||||
|
||||
public static Time minsIntToTime(int mins) {
|
||||
return new Time(mins / 60, mins % 60);
|
||||
}
|
||||
|
||||
public Time addTime(Time time) {
|
||||
int newHour = hour + time.hour();
|
||||
int newMinute = minute + time.minute();
|
||||
|
|
@ -34,14 +42,6 @@ public class Time {
|
|||
return String.format("%02d:%02d", hour, minute);
|
||||
}
|
||||
|
||||
public static int timeToMinsInt(Time time) {
|
||||
return time.hour() * 60 + time.minute();
|
||||
}
|
||||
|
||||
public static Time minsIntToTime(int mins) {
|
||||
return new Time(mins/60, mins%60);
|
||||
}
|
||||
|
||||
public int hour() {
|
||||
return hour;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,11 +26,16 @@ public class Animal {
|
|||
return id;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public void setName(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
public String getName() {
|
||||
return name;
|
||||
|
||||
public int getWeight() {
|
||||
return weight;
|
||||
}
|
||||
|
||||
public void setWeight(int weight) {
|
||||
|
|
@ -38,8 +43,9 @@ public class Animal {
|
|||
throw new IllegalArgumentException("Weight must be positive!");
|
||||
this.weight = weight;
|
||||
}
|
||||
public int getWeight() {
|
||||
return weight;
|
||||
|
||||
public int getAge() {
|
||||
return age;
|
||||
}
|
||||
|
||||
public void setAge(int age) {
|
||||
|
|
@ -47,21 +53,20 @@ public class Animal {
|
|||
throw new IllegalArgumentException("Age must be positive!");
|
||||
this.age = age;
|
||||
}
|
||||
public int getAge() {
|
||||
return age;
|
||||
|
||||
public String getSponsor() {
|
||||
return sponsor;
|
||||
}
|
||||
|
||||
public void setSponsor(String sponsor) {
|
||||
this.sponsor = sponsor;
|
||||
}
|
||||
public String getSponsor() {
|
||||
return sponsor;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return String.format("ID: %d\nName: %s\nAge: %d\nWeight: %d\nSponsor: %s", this.id, this.name, this.age, this.weight, this.sponsor == null ? "None" : sponsor);
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object o) {
|
||||
if (this == o) return true;
|
||||
|
|
@ -69,6 +74,7 @@ public class Animal {
|
|||
Animal animal = (Animal) o;
|
||||
return id == animal.id && weight == animal.weight && age == animal.age && Objects.equals(name, animal.name) && Objects.equals(sponsor, animal.sponsor);
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
return Objects.hash(id, name, weight, age, sponsor);
|
||||
|
|
|
|||
|
|
@ -1,9 +1,13 @@
|
|||
package aval.aa1;
|
||||
|
||||
public interface IPetShelter {
|
||||
public void addAnimal(Animal animal);
|
||||
public void removeAnimal(Animal animal);
|
||||
public Animal searchForAnimal(String name);
|
||||
public boolean sponsorAnimal(int animalId);
|
||||
public void listAllAnimals();
|
||||
void addAnimal(Animal animal);
|
||||
|
||||
void removeAnimal(Animal animal);
|
||||
|
||||
Animal searchForAnimal(String name);
|
||||
|
||||
boolean sponsorAnimal(int animalId);
|
||||
|
||||
void listAllAnimals();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@ package aval.aa1;
|
|||
import java.util.Scanner;
|
||||
|
||||
public class PetShelter implements IPetShelter {
|
||||
private String shelterName;
|
||||
private final String shelterName;
|
||||
private Animal[] animals;
|
||||
|
||||
public PetShelter(String shelterName) {
|
||||
|
|
@ -17,9 +17,7 @@ public class PetShelter implements IPetShelter {
|
|||
animals[0] = animal;
|
||||
} else {
|
||||
Animal[] newAnimals = new Animal[animals.length + 1];
|
||||
for (int i = 0; i < animals.length; i++) {
|
||||
newAnimals[i] = animals[i];
|
||||
}
|
||||
System.arraycopy(animals, 0, newAnimals, 0, animals.length);
|
||||
newAnimals[newAnimals.length - 1] = animal;
|
||||
animals = newAnimals;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,5 @@
|
|||
package aval.aa2.Classes;
|
||||
|
||||
import java.time.LocalDate;
|
||||
import java.time.LocalDateTime;
|
||||
import java.util.List;
|
||||
import java.util.Objects;
|
||||
|
|
|
|||
|
|
@ -9,7 +9,6 @@ import java.io.FileReader;
|
|||
import java.io.IOException;
|
||||
import java.nio.file.Files;
|
||||
import java.nio.file.Path;
|
||||
import java.time.LocalDate;
|
||||
import java.time.LocalDateTime;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,41 @@
|
|||
package aval.atp1;
|
||||
|
||||
import java.time.LocalDate;
|
||||
// YOU MAY ADD IMPORTS HERE
|
||||
|
||||
public class RainfallInfo {
|
||||
private final LocalDate date;
|
||||
private final String location;
|
||||
private final double rainfall;
|
||||
|
||||
public RainfallInfo(LocalDate date, String location, double rainfall) {
|
||||
this.date = date;
|
||||
this.location = location;
|
||||
this.rainfall = rainfall;
|
||||
}
|
||||
|
||||
public LocalDate date() {
|
||||
return date;
|
||||
}
|
||||
|
||||
public String location() {
|
||||
return location;
|
||||
}
|
||||
|
||||
public double rainfall() {
|
||||
return rainfall;
|
||||
}
|
||||
|
||||
// YOU MAY ADD METHODS HERE
|
||||
@Override
|
||||
public String toString() {
|
||||
return String.format("(%s, %s, %.1f)", date(), location(), rainfall());
|
||||
}
|
||||
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
return date.hashCode() | location.hashCode() | Double.hashCode(rainfall);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,118 @@
|
|||
package aval.atp1;
|
||||
|
||||
import java.io.FileReader;
|
||||
import java.io.IOError;
|
||||
import java.nio.file.Files;
|
||||
import java.nio.file.Paths;
|
||||
import java.time.LocalDate;
|
||||
import java.time.Month;
|
||||
import java.util.*;
|
||||
// YOU MAY ADD IMPORTS HERE
|
||||
|
||||
public class RainfallTest {
|
||||
public static List<RainfallInfo> loadData(String filePath) {
|
||||
List<RainfallInfo> data = null;
|
||||
try {
|
||||
// Check if file is csv
|
||||
if (!filePath.endsWith(".csv")) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (!Files.exists(Paths.get(filePath))) {
|
||||
return null;
|
||||
}
|
||||
|
||||
// 1) Read the file and add RainfallInfo objects to a list.
|
||||
Scanner sc = new Scanner(new FileReader(filePath));
|
||||
sc.nextLine(); // skip header
|
||||
|
||||
while (sc.hasNextLine()) {
|
||||
String[] datacomps = sc.nextLine().split(",");
|
||||
LocalDate date = LocalDate.parse(datacomps[0]);
|
||||
String location = datacomps[1];
|
||||
double rainfall = Double.parseDouble(datacomps[2]);
|
||||
if (data == null) data = new ArrayList<>();
|
||||
data.add(new RainfallInfo(date, location, rainfall));
|
||||
}
|
||||
} catch (Exception e) {
|
||||
throw new IOError(e.getCause()); // repackage as error
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
public static String printLocationData(List<RainfallInfo> data, String loc) {
|
||||
System.out.printf("Rainfall for location %s:\n", loc);
|
||||
// 2) Print rainfall values for the given location
|
||||
data.stream().filter(r -> r.location().equals(loc)).forEach(System.out::println);
|
||||
return "";
|
||||
}
|
||||
|
||||
public static Map<Month, Double> totalPerMonth(List<RainfallInfo> data) {
|
||||
// 3) Calculate and return a map with the total rainfall per month
|
||||
Map<Month, Double> map = new HashMap<>();
|
||||
data.forEach(r -> {
|
||||
Month m = r.date().getMonth();
|
||||
if (map.containsKey(m)) {
|
||||
map.put(m, map.get(m) + r.rainfall());
|
||||
} else {
|
||||
map.put(m, r.rainfall());
|
||||
}
|
||||
});
|
||||
return map;
|
||||
}
|
||||
|
||||
public static String printMapSorted(Map<Month, Double> map) {
|
||||
// 4) Print map sorted by key
|
||||
map.entrySet().stream().sorted(Map.Entry.comparingByKey()).forEach(e -> System.out.printf("%s: %.1f\n", e.getKey(), e.getValue()));
|
||||
return "";
|
||||
}
|
||||
|
||||
// YOU MAY ADD METHODS HERE
|
||||
public static String main() {
|
||||
Test.lst = null;
|
||||
Test.map = null;
|
||||
// Load the file data to the list
|
||||
List<RainfallInfo> rainfallData = loadData("rainfall_data.csv");
|
||||
System.out.printf("Data size: %d\n", rainfallData.size());
|
||||
System.out.printf("Data hash: %d\n", rainfallData.hashCode());
|
||||
System.out.println();
|
||||
|
||||
// Show data for a single town
|
||||
printLocationData(rainfallData, "Braga");
|
||||
System.out.println();
|
||||
|
||||
// Find total rainfall per month
|
||||
Map<Month, Double> rainfallPerMonth = totalPerMonth(rainfallData);
|
||||
|
||||
// Print sorted results
|
||||
printMapSorted(rainfallPerMonth);
|
||||
return "";
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
main();
|
||||
}
|
||||
}
|
||||
|
||||
class Test {
|
||||
static List<RainfallInfo> lst = new ArrayList<>();
|
||||
static Map<Month, Double> map = new HashMap<>();
|
||||
// Variables used in unit tests (DON'T USE IN YOUR IMPLEMENTATION!):
|
||||
private static final LocalDate[] dates = {
|
||||
LocalDate.parse("2023-03-02"),
|
||||
LocalDate.parse("2023-04-17"),
|
||||
LocalDate.parse("2023-05-27"),
|
||||
};
|
||||
|
||||
static {
|
||||
lst.add(new RainfallInfo(dates[2], "Aveiro", 2.2));
|
||||
lst.add(new RainfallInfo(dates[1], "Braga", 3.0));
|
||||
lst.add(new RainfallInfo(dates[0], "Aveiro", 0.0));
|
||||
lst.add(new RainfallInfo(dates[2], "Braga", 4.0));
|
||||
lst.add(new RainfallInfo(dates[1], "Aveiro", 1.1));
|
||||
map.put(Month.JULY, 7.7);
|
||||
map.put(Month.MAY, 5.5);
|
||||
map.put(Month.JUNE, 6.6);
|
||||
map.put(Month.MARCH, 3.3);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,6 +0,0 @@
|
|||
# Programação Orientada a Objetos
|
||||
## Exercícios TP
|
||||
### Resoluções para exercícios sugeridos nas aulas Teórico-Práticas
|
||||
|
||||
---
|
||||
*Pode conter erros, caso encontre algum, crie um* [*ticket*](https://github.com/TiagoRG/uaveiro-leci/issues/new)
|
||||
|
|
@ -1,59 +0,0 @@
|
|||
package tp_codecheck.tp01;
|
||||
|
||||
// Solução do exercício 2
|
||||
|
||||
import java.util.Scanner;
|
||||
|
||||
/**
|
||||
This program updates an account balance, according to the table below:
|
||||
Balance Interest Rate Charge
|
||||
> $100,000.00 2.75 % $ 0.00
|
||||
> $25,000.00 2.00 % $ 0.00
|
||||
> $10,000.00 1.00 % $ 0.00
|
||||
>= $0.00 0.00 % $ 0.00
|
||||
< $0.00 0.00 % $ 25.00
|
||||
and prints out the new balance.
|
||||
*/
|
||||
public class BankInterest
|
||||
{
|
||||
public static void main(String[] args)
|
||||
{
|
||||
// Define constants
|
||||
final double HI_RATE = 2.75;
|
||||
final double MD_RATE = 2.00;
|
||||
final double LO_RATE = 1.00;
|
||||
final double ZERO_RATE = 0.00;
|
||||
final double DEB_CHG = -25.00;
|
||||
|
||||
final double HI_LIMIT = 100000.00;
|
||||
final double MD_LIMIT = 25000.00;
|
||||
final double LO_LIMIT = 10000.00;
|
||||
final double ZERO_LIMIT = 0.00;
|
||||
|
||||
// Print prompt to enter a current balence
|
||||
System.out.print("Enter current balance: ");
|
||||
|
||||
// Read balance
|
||||
Scanner in = new Scanner(System.in);
|
||||
double balance = in.nextDouble();
|
||||
|
||||
// Determine interest rate (or charge) based on current balance
|
||||
// to compute new balance
|
||||
|
||||
// Your work here
|
||||
|
||||
double newBalance;
|
||||
if (balance > HI_LIMIT)
|
||||
newBalance = balance*(1+HI_RATE/100);
|
||||
else if (balance > MD_LIMIT)
|
||||
newBalance = balance*(1+MD_RATE/100);
|
||||
else if (balance > LO_LIMIT)
|
||||
newBalance = balance*(1+LO_RATE/100);
|
||||
else if (balance < ZERO_LIMIT)
|
||||
newBalance = balance+DEB_CHG;
|
||||
else
|
||||
newBalance = balance;
|
||||
|
||||
System.out.printf("%.2f\n", newBalance);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,28 +0,0 @@
|
|||
package tp_codecheck.tp01;
|
||||
|
||||
// Solução do exercício 3
|
||||
|
||||
public class Table {
|
||||
|
||||
public static void main(String[] args) {
|
||||
System.out.printf("%s | %s | %s | %s\n", "n", "Hn", "log n", "Hn - log n");
|
||||
int n = 1;
|
||||
while (n <= 1000000) {
|
||||
double f1 = harmonic(n);
|
||||
double f2 = Math.log((double)n);
|
||||
System.out.printf("%d | %.3f | %.3f | %.9f\n", n, f1, f2, f1-f2);
|
||||
n *= 2;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Computes the Harmonic number Hn = 1 + 1/2 + 1/3 + ... + 1/n.
|
||||
*/
|
||||
private static double harmonic(int n) {
|
||||
double sum = 0;
|
||||
for (int i = 1; i <= n; i++) {
|
||||
sum += 1/(float)i;
|
||||
}
|
||||
return sum;
|
||||
}
|
||||
}
|
||||
|
|
@ -1,29 +0,0 @@
|
|||
package tp_codecheck.tp01;
|
||||
|
||||
// Solução do exercício 1
|
||||
|
||||
/*
|
||||
This is a short Java program to convert
|
||||
a temperature from Celsius to Fahrenheit.
|
||||
*/
|
||||
|
||||
// You may want to import stuff here...
|
||||
|
||||
import java.util.Scanner;
|
||||
|
||||
public class Temperature {
|
||||
// Create a Scanner to parse standard input:
|
||||
private static Scanner sc = new Scanner(System.in);
|
||||
|
||||
public static void main(String[] args) {
|
||||
// Put your code here
|
||||
System.out.print("Celsius? ");
|
||||
double celcius = sc.nextDouble();
|
||||
double fahrenheit = 1.8*celcius+32;
|
||||
System.out.printf("%f C = %f F\n", celcius, fahrenheit);
|
||||
|
||||
System.out.println("THE END");
|
||||
}
|
||||
}
|
||||
|
||||
// JMR 2023
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
# Exercícios de Arrays
|
||||
|
||||
## Ex1
|
||||
```java
|
||||
final int LENGHT = 100;
|
||||
int[] a = new int[LENGHT];
|
||||
// Code for filling a ommited
|
||||
for (int = 99; i >= 0; i--)
|
||||
{
|
||||
System.out.print(a[i]);
|
||||
if (i > 0) { System.out.print(', '); }
|
||||
}
|
||||
```
|
||||
|
||||
## Ex2
|
||||
```java
|
||||
int[] numbers = new int[100];
|
||||
for (int k = 0; k < numbers.length; k++)
|
||||
{
|
||||
numbers[k] = k + 1;
|
||||
}
|
||||
```
|
||||
|
||||
|
|
@ -1,27 +0,0 @@
|
|||
package tp_codecheck.tp02;
|
||||
|
||||
import java.util.Scanner;
|
||||
|
||||
public class NumberOfDays {
|
||||
public static void main(String[] args)
|
||||
{
|
||||
// Declare and initialize daysOfMonth
|
||||
int[] daysOfMonth = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
|
||||
|
||||
Scanner in = new Scanner(System.in);
|
||||
System.out.print("Month (1 - 12): ");
|
||||
int month = in.nextInt();
|
||||
System.out.print("Year: ");
|
||||
int year = in.nextInt();
|
||||
|
||||
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
|
||||
// It's a leap year. Adjust the entry for February
|
||||
daysOfMonth[1]+=1;
|
||||
}
|
||||
|
||||
// Get the number of days in the given month
|
||||
int days = daysOfMonth[month-1];
|
||||
|
||||
System.out.println("Number of days: " + days);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,17 +0,0 @@
|
|||
package tp_codecheck.tp02;
|
||||
|
||||
public class Numbers {
|
||||
public static void main(String[] args) {
|
||||
// Different arrays will be substituted here.
|
||||
int[] values = { 3, 1, 4, 1, 5, 9 };
|
||||
int[] newValues = new int[values.length/2];
|
||||
|
||||
for (int x = 0; x < values.length; x+=2) {
|
||||
newValues[x/2] = values[x];
|
||||
}
|
||||
|
||||
for (int i = 0; i < newValues.length; i++) {
|
||||
System.out.println(newValues[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,9 +0,0 @@
|
|||
# Tabela Exercício 1 de Strings
|
||||
|
||||
| Question | Answer |
|
||||
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------|
|
||||
| What is the length of the string below?<br>String str = "Java Program" | 12 |
|
||||
| With str as defined above, give a call to the substring method that returns the substring "gram". | str.substring(8) |
|
||||
| Use the string concatenation operator to change the string variable str to contain the string "Java Programming". | str += "ming" |
|
||||
| What does the following statement sequence print?<br><br>String str = "Harry";<br>int n = str.length();<br>String mystery = str.substring(0, 1) + str.substring(n - 1, n);<br>System.out.println(mystery); | Hy |
|
||||
| Consider the following statement sequence. If the user provides the input John Q. Public, what is printed? If an error occurs, type error.<br><br>Scanner in = new Scanner(System.in);<br>String first = in.next();<br>String last = in.next();<br>System.out.println(last + ", " + first); | Q., John |
|
||||
|
|
@ -1,12 +0,0 @@
|
|||
package tp_codecheck.tp02;
|
||||
|
||||
import java.util.Scanner;
|
||||
|
||||
public class Words {
|
||||
public static void main(String[] args) {
|
||||
Scanner in = new Scanner(System.in);
|
||||
String word = in.next();
|
||||
word = word.charAt(word.length()-1) + word.substring(1, word.length()-1) + word.charAt(0);
|
||||
System.out.println(word);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,66 +0,0 @@
|
|||
package tp_codecheck.tp03.part1;
|
||||
|
||||
/**
|
||||
A simulated traffic light.
|
||||
*/
|
||||
public class TrafficLight1
|
||||
{
|
||||
private String color;
|
||||
private int reds;
|
||||
|
||||
/**
|
||||
Constructs a green traffic light.
|
||||
*/
|
||||
public TrafficLight1()
|
||||
{
|
||||
this.color = "green";
|
||||
this.reds = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
Constructs a traffic light.
|
||||
@param initialColor the initial color "green", "yellow", or "red"
|
||||
*/
|
||||
public TrafficLight1(String initialColor)
|
||||
{
|
||||
this.color = initialColor;
|
||||
this.reds = initialColor == "red" ? 1 : 0;
|
||||
}
|
||||
|
||||
/**
|
||||
Moves this traffic light to the next color.
|
||||
*/
|
||||
public void next()
|
||||
{
|
||||
switch (this.color) {
|
||||
case "red":
|
||||
this.color = "green";
|
||||
break;
|
||||
case "green":
|
||||
this.color = "yellow";
|
||||
break;
|
||||
case "yellow":
|
||||
this.color = "red";
|
||||
this.reds += 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
Returns the current color of this traffic light.
|
||||
@return the current color
|
||||
*/
|
||||
public String getColor()
|
||||
{
|
||||
return this.color;
|
||||
}
|
||||
|
||||
/**
|
||||
Counts how often this traffic light has been red.
|
||||
@return the number of times this traffic light has been red
|
||||
*/
|
||||
public int getReds()
|
||||
{
|
||||
return this.reds;
|
||||
}
|
||||
}
|
||||
|
|
@ -1,68 +0,0 @@
|
|||
package tp_codecheck.tp03.part1;
|
||||
|
||||
/**
|
||||
A simulated traffic light.
|
||||
*/
|
||||
public class TrafficLight2
|
||||
{
|
||||
private int steps;
|
||||
|
||||
/**
|
||||
Constructs a green traffic light.
|
||||
*/
|
||||
public TrafficLight2()
|
||||
{
|
||||
this.steps = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
Constructs a traffic light.
|
||||
@param initialColor the initial color "green", "yellow", or "red"
|
||||
*/
|
||||
public TrafficLight2(String initialColor)
|
||||
{
|
||||
switch (initialColor) {
|
||||
case "green":
|
||||
this.steps = 0;
|
||||
break;
|
||||
case "yellow":
|
||||
this.steps = 1;
|
||||
break;
|
||||
case "red":
|
||||
this.steps = 2;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
Moves this traffic light to the next color.
|
||||
*/
|
||||
public void next()
|
||||
{
|
||||
steps++;
|
||||
}
|
||||
|
||||
/**
|
||||
Returns the current color of this traffic light.
|
||||
@return the current color
|
||||
*/
|
||||
public String getColor()
|
||||
{
|
||||
int rem = (this.steps + 1) % 3;
|
||||
if (rem == 0)
|
||||
return "red";
|
||||
else if (rem == 1)
|
||||
return "green";
|
||||
else
|
||||
return "yellow";
|
||||
}
|
||||
|
||||
/**
|
||||
Counts how often this traffic light has been red.
|
||||
@return the number of times this traffic light has been red
|
||||
*/
|
||||
public int getReds()
|
||||
{
|
||||
return (this.steps + 1) / 3;
|
||||
}
|
||||
}
|
||||
|
|
@ -1,72 +0,0 @@
|
|||
package tp_codecheck.tp03.part2;
|
||||
|
||||
public class RentalCar {
|
||||
private boolean rented;
|
||||
private static int rentedCount = 0;
|
||||
private static int availableCount = 0;
|
||||
|
||||
/**
|
||||
* Constructs a rental car.
|
||||
*/
|
||||
public RentalCar() {
|
||||
// your work here
|
||||
rented = false;
|
||||
RentalCar.availableCount++;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get number of cars available.
|
||||
*
|
||||
* @return count of cars that are available
|
||||
*/
|
||||
public static int numAvailable() {
|
||||
// your work here
|
||||
return RentalCar.availableCount;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get number of cars rented.
|
||||
*
|
||||
* @return count of cars that are rented
|
||||
*/
|
||||
public static int numRented() {
|
||||
// your work here
|
||||
return RentalCar.rentedCount;
|
||||
}
|
||||
|
||||
/**
|
||||
* Try to rent this car.
|
||||
*
|
||||
* @return true if the car was successfully rented, false if it was already
|
||||
* rented
|
||||
*/
|
||||
public boolean rentCar() {
|
||||
// your work here
|
||||
if (this.rented) {
|
||||
return false;
|
||||
} else {
|
||||
this.rented = true;
|
||||
RentalCar.rentedCount++;
|
||||
RentalCar.availableCount--;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Return rented car.
|
||||
*
|
||||
* @return true if the car was previously rented and is now returned,
|
||||
* false if it was not previously rented
|
||||
*/
|
||||
public boolean returnCar() {
|
||||
// your work here
|
||||
if (this.rented) {
|
||||
this.rented = false;
|
||||
RentalCar.rentedCount--;
|
||||
RentalCar.availableCount++;
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -13,6 +13,27 @@ public class DateYMD {
|
|||
this.year = year;
|
||||
}
|
||||
|
||||
static boolean validMonth(int month) {
|
||||
return month >= 1 && month <= 12;
|
||||
}
|
||||
|
||||
static int monthDays(int month, int year) {
|
||||
if (!validMonth(month))
|
||||
return -1;
|
||||
int[] daysPerMonth = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
|
||||
if (month == 2 && isLeapYear(year))
|
||||
return 29;
|
||||
return daysPerMonth[month - 1];
|
||||
}
|
||||
|
||||
static boolean isLeapYear(int year) {
|
||||
return year % 100 == 0 ? year % 400 == 0 : year % 4 == 0;
|
||||
}
|
||||
|
||||
public static boolean validDate(int day, int month, int year) {
|
||||
return day >= 1 && day <= monthDays(month, year);
|
||||
}
|
||||
|
||||
public void set(int day, int month, int year) {
|
||||
if (!validDate(day, month, year))
|
||||
throw new IllegalArgumentException("Invalid date");
|
||||
|
|
@ -71,24 +92,4 @@ public class DateYMD {
|
|||
public String toString() {
|
||||
return String.format("%04d-%02d-%02d", this.year, this.month, this.day);
|
||||
}
|
||||
static boolean validMonth(int month) {
|
||||
return month >= 1 && month <= 12;
|
||||
}
|
||||
|
||||
static int monthDays(int month, int year) {
|
||||
if (!validMonth(month))
|
||||
return -1;
|
||||
int[] daysPerMonth = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
|
||||
if (month == 2 && isLeapYear(year))
|
||||
return 29;
|
||||
return daysPerMonth[month - 1];
|
||||
}
|
||||
|
||||
static boolean isLeapYear(int year) {
|
||||
return year % 100 == 0 ? year % 400 == 0 : year % 4 == 0;
|
||||
}
|
||||
|
||||
public static boolean validDate(int day, int month, int year) {
|
||||
return day >= 1 && day <= monthDays(month, year);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue