Simple Calculator

//create a new class named Simple Calculator and then calling this in the main method.
//this file consists only of SimpleCalcualtor source file.

package com.company;

public class SimpleCalculator {
    private double firstNumber;
    private double secondNumber;

    public void setFirstNumber(double firstNumber1) {
        this.firstNumber = firstNumber1;
    }

    public void setSecondNumber(double secondNumber1) {
        this.secondNumber = secondNumber1;
    }

    public double getFirstNumber() {
        return firstNumber;
    }

    public double getSecondNumber() {
        return secondNumber;
    }

    public double getAdditionResult() {
        return ( firstNumber + secondNumber );
    }
    public double getSubtractionResult() {
        return  ( secondNumber - firstNumber );
    }
    public double getMultiplicationResult() {
        return ( secondNumber * firstNumber );
    }
    public double getDivisonResult() {
        if(secondNumber==0){
            return 0;
        }
        else {
            return (firstNumber / secondNumber);
        }

    }
}