Simple Arithmetic functions

//This program depicts the simple
//arithmetic functions of addition, subtraction, multiplication and
//division
import java.util.*;
class calculator
{
public static void main(String Args[])
{
int num1=250,num2=20;
double sum,product,difference,quotient;
sum=num1+num2;
product=num1*num2;
difference=num1-num2;
quotient=num1/num2;
System.out.println("Sum ="+sum);
System.out.println("Product="+product);
System.out.println("Difference="+difference);
System.out.println("Quotient="+quotient);
}
}