Simple Calculation in java

public class Demo
{
public static void main(String args[])
{
int a =50;
int b = 20;
System.out.println("addition="+(a+b));
System.out.println("Substraction="+(a-b));
System.out.println("Multiplication="+(a*b));
System.out.println("Division ="+(a/b));

}
}