Answer to Question #265268 in Java | JSP | JSF for Shan

Question

Create a class “Calculator” with two variables, a constructor with no parameter and

two functions for add and multiply. Create a class TestApp with a main function and

create object of Calculator class to call functions.

Answer 1

public class Calculator {

    private long var1;
    private long var2;

    public Calculator() {
    }

    public long multiply() {
        return var1 * var2;
    }

    public long add() {
        return var1 + var2;
    }

    public void setVar1(long var1) {
        this.var1 = var1;
    }

    public void setVar2(long var2) {
        this.var2 = var2;
    }

    public long getVar1() {
        return var1;
    }

    public long getVar2() {
        return var2;
    }
}

public class TestApp {

    public static void main(String[] args) {
        Calculator calculator = new Calculator();

        //init variables
        calculator.setVar1(-10);
        calculator.setVar2(72);

        System.out.println("The sum of " + calculator.getVar1() + " and " + calculator.getVar2() + " is " + calculator.add());
        System.out.println("The multiplication of " + calculator.getVar1() + " and " + calculator.getVar2() + " is " + calculator.multiply());

    }
}