POO tp_codecheck added

1ano/2semestre/poo/out/production/poo/tp_codecheck/tp02/Strings1.md

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+# 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         |

1ano/2semestre/poo/src/tp_codecheck/tp01/BankInterest.java

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+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);
+   }
+}

1ano/2semestre/poo/src/tp_codecheck/tp01/Table.java

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+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;
+   }
+}

1ano/2semestre/poo/src/tp_codecheck/tp01/Temperature.java

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+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

1ano/2semestre/poo/src/tp_codecheck/tp02/Strings1.md

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+# 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         |

1ano/2semestre/poo/src/tp_codecheck/tp02/Words.java

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+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);
+    }
+}