Java Program - Design a class named MyInteger. The class contains: ? An int data

Question

Java Program -

Design a class named MyInteger. The class contains:
? An int data field named value that stores the int value represented by this
object.
? A constructor that creates a MyInteger object for the specified int value.
? A getter method that returns the int value.
? The methods isEven(), isOdd(), and isPrime() that return true if the
value in this object is even, odd, or prime, respectively.
? The static methods isEven(int), isOdd(int), and isPrime(int) that
return true if the specified value is even, odd, or prime, respectively.
? The static methods isEven(MyInteger), isOdd(MyInteger), and
isPrime(MyInteger) that return true if the specified value is even, odd,
or prime, respectively.
? The methods equals(int) and equals(MyInteger) that return true if
the value in this object is equal to the specified value.
? A static method parseInt(char[]) that converts an array of numeric
characters to an int value.
? A static method parseInt(String) that converts a string into an int
value.
Draw the UML diagram for the class and then implement the class. Write a client
program that tests all methods in the class.

Next, develop a test program in a separate file (call it TestMyInteger.java) to create all methods of the class.

Explanation / Answer

import java.util.Scanner;

class MyInteger
{
   int value;
  
   MyInteger()
   {
       System.out.println("Enter a new number");
       Scanner sc= new Scanner(Syatem.in);
       int value= sc.nextInt();
   }
  
   public static int getter()
   {
       System.out.println("Enter a new number");
       Scanner sc= new Scanner(Syatem.in);
       int i= sc.nextInt();
      
       return i;
   }
  
   public static boolean isEven(int a)
   {
       if(a%2==0)
       return true;
   }

   public static boolean isOdd(int a)
   {
       if (a%2 !=0)
       return true;
   }
  
   public static boolean isPrime(int a)
   {
       int count=0;
       for(int i=2; i<a; i++)
       {
           if(a%i==0) count ++;
       }
       if(count==0) return true;
   }

   public static boolean isEven(MyInteger a)
   {
       if(a.value%2==0)
       return true;
   }

   public static boolean isOdd(MyInteger a)
   {
       if (a.value%2 !=0)
       return true;
   }
  
   public static boolean isPrime(MyInteger a)
   {
       int count=0;
       for(int i=2; i<a; i++)
       {
           if(a.value%i==0) count ++;
       }
       if(count==0) return true;
   }

   public static boolean equals(int a)
   {
       if (a==value) return true;
   }

   public static boolean equals(MyInteger a)
   {
       if (a.value==value) return true;
   }

   public static int parseInt()// conversion of char to int
   {
       char[] digits = { '1', '2', '3' };
       int number = Integer.parseInt(new String(digits));
       return number;
   }
   public static int parseInt(String s)
   {
       int y = Integer.parseInt(s);
       return y;
   }
}

class TestMyInteger
{
   public static void main(String args[])
   {
       MyInteger m = new MyInteger();
       int i= getter();
       System.out.println(isEven(i));
       System.out.println(isOdd(i));
       System.out.println(isPrime(i));

       System.out.println(isEven(m));
       System.out.println(isOdd(m));
       System.out.println(isPrime(m));

       System.out.println(equals(i));
       System.out.println(equals(m));

       System.out.println(parseInt());
       System.out.println(parseInt("1768"));
      
   }
}

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