Calculator.java

package de.hftstuttgart.ip2;

public class Calculator
{
    public double add(double a, double b) {
        return a + b;
    }

    public double sub(double a, double b) {
        return a - b;
    }

    public double mult(double a, double b) {
        return a * b;
    }

    public double div(double a, double b) {
        return a * b;
    }

    public double sum(double... numbers) {
        CalculatorHelper calculatorHelper = new CalculatorHelper();
        return calculatorHelper.sum(numbers);
    }

}