TiagoRG
/
uaveiro-leci
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[POO] aula05 ex2 added

This commit is contained in:
TiagoRG 2023-03-14 10:42:35 +00:00
parent 68ea44bfd4
commit d1e8a6e604
1 changed files with 169 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

169
1ano/2semestre/poo/src/aula05/Calendar.java Normal file
View File

@ -0,0 +1,169 @@
package aula05;
import java.util.Arrays;
import java.util.Scanner;
public class Calendar {
private final int year;
private final int firstDayOfWeek;
private final int[][] events;
public Calendar(int year, int firstDayOfWeek) {
this.year = year;
this.firstDayOfWeek = firstDayOfWeek;
this.events = new int[366][3];
}
public int getYear() {
return this.year;
}
public int getFirstDayOfWeek() {
return this.firstDayOfWeek;
}
public int firstWeekdayOfMonth(int month) {
int day = this.firstDayOfWeek;
for (int m = 1; m < month; m++) {
if (day == 7)
day = 0;
int days = DateYMD.monthDays(m, this.year);
day += days % 7 - 1;
if (day > 7)
day -= 7;
day++;
}
return day == 7 ? 7 : day%7;
}
public void printMonth(int month) {
String[] monthNames = {"Janeiro", "Fevereiro", "Março", "Abril", "Maio", "Junho", "Julho", "Agosto", "Setembro", "Outubro", "Novembro", "Dezembro"};
System.out.printf("\n%15s %d\n", monthNames[month-1], year);
System.out.println("Dom Seg Ter Qua Qui Sex Sab");
int firstWeekday = this.firstWeekdayOfMonth(month);
for (int i = 1; i < firstWeekday; i++)
System.out.print(" ");
for (int monthDay = 1; monthDay <= monthDays(month, year); monthDay++) {
System.out.print(this.isEvent(monthDay, month, this.year) ? String.format("*%2d ", monthDay) : String.format("%3d ", monthDay));
if ((monthDay + firstWeekday - 1) % 7 == 0)
System.out.println();
}
System.out.println();
}
public void addEvent(int day, int month, int year) {
int[] eventToAdd = {day, month, year};
for (int i = 0; i < this.events.length; i++) {
if (Arrays.equals(this.events[i], new int[]{0, 0, 0})) {
this.events[i] = eventToAdd;
break;
}
}
}
public void removeEvent(int day, int month, int year) {
int[] eventToRemove = {day, month, year};
for (int i = 0; i < this.events.length; i++) {
if (this.events[i] == eventToRemove) {
this.events[i] = new int[]{0, 0, 0};
break;
}
}
}
private boolean isEvent(int day, int month, int year) {
int[] event = {day, month, year};
for (int[] ints : this.events) {
if (Arrays.equals(ints, event))
return true;
}
return false;
}
private int monthDays(int month, int year) {
switch (month) {
case 2 -> {
if (year % 100 == 0 ? year % 400 == 0 : year % 4 == 0)
return 29;
else
return 28;
}
case 4, 6, 9, 11 -> {
return 30;
}
default -> {
return 31;
}
}
}
}
class Tester {
public static void main(String[] args) {
Scanner sin = new Scanner(System.in);
Calendar calendar = null;
while (true) {
System.out.print("Calendar operations:\n1 - create new calendar\n2 - print calendar month\n3 - print calendar\n4 - add event\n5 - remove event\n6 - exit\n> ");
int op = sin.nextInt();
switch (op) {
case 1 -> {
System.out.print("Year: ");
int year = sin.nextInt();
System.out.print("First day of week: ");
int firstDayOfWeek = sin.nextInt();
calendar = new Calendar(year, firstDayOfWeek);
}
case 2 -> {
if (calendar == null) {
System.out.println("Create a calendar first");
break;
}
System.out.print("Month: ");
int month = sin.nextInt();
calendar.printMonth(month);
}
case 3 -> {
if (calendar == null) {
System.out.println("Create a calendar first");
break;
}
for (int month = 1; month <= 12; month++)
calendar.printMonth(month);
}
case 4 -> {
if (calendar == null) {
System.out.println("Create a calendar first");
break;
}
System.out.print("Day: ");
int day = sin.nextInt();
System.out.print("Month: ");
int month = sin.nextInt();
System.out.print("Year: ");
int year = sin.nextInt();
calendar.addEvent(day, month, year);
}
case 5 -> {
if (calendar == null) {
System.out.println("Create a calendar first");
break;
}
System.out.print("Day: ");
int day = sin.nextInt();
System.out.print("Month: ");
int month = sin.nextInt();
System.out.print("Year: ");
int year = sin.nextInt();
calendar.removeEvent(day, month, year);
}
case 6 -> {
sin.close();
System.exit(0);
}
default -> System.out.println("Invalid option");
}
}
}
}