Hi Friend,

Try the following code:

class Calculation{
    public int add(int a,int b){
        return a+b;
    }
    public int subtract(int a,int b){
        if(a>b){
        return a-b;
        }
        else{
        return b-a;
        }
    }
    public int multiply(int a,int b){
        return a*b;
    }
    public int divide(int a,int b){
        if(a>b){
        return a/b;
        }
        else{
        return b/a;
        }
        }
}
public class Calculator{
    public static void main(String []args){
        Calculation cal=new Calculation();
        int add=cal.add(5,10);
        int sub=cal.subtract(5,10);
            int mul=cal.multiply(5,10);
            int div=cal.divide(5,10);
            System.out.println(add);
            System.out.println(sub);
            System.out.println(mul);
          System.out.println(div);
    }
}

Thanks