Stuff

/* * To change this template, choose Tools | Templates * and open the template in the editor. */package huiswerk3;import javax.swing.*;import java.awt.*;/** * * @author Martijn */public class Main {    /**     * @param args the command line arguments     */    public static void main(String[] args) {        Rekenmachine r = new Rekenmachine();        r.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        r.setSize(200, 200);        r.setTitle("Rekenmachine");        r.setVisible(true);    }}