A12. Write a Complex class with add,sub,swap method

package a1;

/** * Created by Ganesh.Ramshette on 7/21/2018. * 2. Write a Complex class with add,sub,swap method.-Done */

public class A12class
{
    int add(int a, int b){ return a+b;}
    int sub(int a, int b){ return a-b;}
    void swap(int a, int b)
    {
        int temp=0;
        System.out.println("numbers before swap num1= "+a+" num2= "+b);
        temp=a;
        a =b;
        b=temp;
        System.out.println("numbers after swap num1= "+a+" num2= "+b);
    }
    public static void main(String args[])
    {
        int num1 = 20;
        int num2 = 10;
        A12class obj = new A12class();
        System.out.println("addition is: "+obj.add(num1,num2));
        System.out.println("substarction is: "+obj.sub(num1,num2));
        obj.swap(num1,num2);
    }
}