Calculator.java

//
//this is a calculator that computes basic operations of math
//

import java.util.Scanner;
public class Calculator {
    static Scanner sc = new Scanner(System.in);
    public static void main(String [] args) {
        //create variables
        double a;
        double b;
        //input
        System.out.print("Enter a : ");
        a = sc.nextDouble();
        System.out.print("Enter b : ");
        b = sc.nextDouble();

        //basic operations
        double add = a+b;
        double subtract = a-b;
        double multiply = a*b;
        double divide = a/b;

        //outputs
        System.out.println("Sum : " + add);
        System.out.println("Difference : " + subtract);
        System.out.println("Product : " + multiply);
        System.out.println("Quotient : " + divide);
    }
}