Simple Calculator class to practice JUnit syntax

Calculator.java

package com.diamante.example;

public class Calculator {

    public double sum(double number1, double number2) {
        return number1 + number2;
    }

    public double minus(double number1, double number2) {
        return number1 - number2;
    }

    public double product(double number1, double number2) {
        return number1 * number2;
    }

    public double dividend(double number1, double number2) {
        return number1 / number2;
    }
}