(Mylnteger.java class) Design a class named Mylnteger. The class contains: - An

Question

(Mylnteger.java class) Design a class named Mylnteger. The class contains: - An int data field named value that stores the int value represented by this object. - A constructor that creates a Mylnteger object for the specified int value. - A get method that returns the int value. - Methods isEven(), isOdd(), and isPrime() that return true if the value is even, odd, or prime, respectively. - Static methods isEven(int), isOdd(int), and isPrime(int) that return true if the specified value is even, odd, or prime, respectively. - Static methods isEven(Mylnteger), isOdd(Mylnteger), and isPrime(Mylnteger) that return true if the specified value is even, odd, or prime, respectively. - Methods equals(int) and equals(MyInteger) that return true if the value in the object is equal to the specified value. - A static method parseint(String) that converts a string to an int value. Implement the method without using integer. parseint(x). Draw the UML diagram for the class. Implement the class. Write a client program that tests all methods in the class.

Explanation / Answer

***** MyInteger.java **********

public class MyInteger {

   private int data;
  
   public MyInteger(int data) {
       this.data = data;
   }
  
   public int getValue(){
       return data;
   }
  
   public boolean isEven(){
       return data%2 == 0;
   }
  
   public boolean isOdd(){
       return data%2 == 1;
   }
  
   public boolean isPrime(){
      
       for(int i=2; i<=data/2; i++){
           if(data%i == 0)
               return false;
       }
       return true;
   }
  
   public static boolean isEven(int n){
       return n%2 == 0;
   }
  
   public static boolean isOdd(int n){
       return n%2 == 1;
   }
  
   public static boolean isPrime(int n){
      
       for(int i=2; i<=n/2; i++){
           if(n%i == 0)
               return false;
       }
       return true;
   }
  
   public boolean equals(int n){
       return data == n;
   }
  
   public boolean equals(MyInteger n){
       return data == n.getValue();
   }
  
   public static int parseInt(String s){
       int n = 0;
       for(int i=0; i<s.length(); i++){
           n = n*10 + s.charAt(i)-'0';
       }
      
       return n;
   }
  
}

********** Test Class ************

public class TestMyInteger {

   public static void main(String[] args) {
      
       MyInteger myInt1 = new MyInteger(20);
      
       System.out.println("Value: "+ myInt1.getValue());
       System.out.println("isEven ? "+myInt1.isEven());
       System.out.println("isOdd ? "+myInt1.isOdd());
       System.out.println("isPrime ? "+myInt1.isPrime());
      
       // testing static methods
      
       System.out.println("isEven(13): "+MyInteger.isEven(13));
       System.out.println("isOdd(13): "+MyInteger.isOdd(13));
       System.out.println("isPrime(13): "+MyInteger.isPrime(13));
      
       System.out.println(MyInteger.parseInt("34"));
   }
}

/*

Sample Output:

Value: 20
isEven ? true
isOdd ? false
isPrime ? false
isEven(13): false
isOdd(13): true
isPrime(13): true
34

*/

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