Shorthand Assignment Operators in JAVA

package Mobile.OperatorsAndExpressions;
import java.util.Scanner;
public class ShortHandAssignmentOperators
{
    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        int a,b,c,d;
        System.out.println("Enter First Number");
        a=sc.nextInt();
        System.out.println("Enter Second Number");
        b=sc.nextInt();
        System.out.println("Enter Third Number");
        c=sc.nextInt();
        System.out.println("Enter Fourth Number");
        d=sc.nextInt();
        System.out.println("a="+a);
        System.out.println("b="+b);
        System.out.println("c="+c);
        System.out.println("d="+d);
        a+=b;
        System.out.println("After adding a and b the ans is="+a);
        System.out.println("Now a="+a);
        a-=c;
        System.out.println("After sub c from a the ans is="+a);
        System.out.println("Now a="+a);
        a*=d;
        System.out.println("After mul a and d the ans is="+a);
        System.out.println("Now a="+a);
    }
}