Exit and Reset Buttons

Question

Hi i'm trying to make the exit and reset buttons work.
Everything works exept for these two and I do'nt understand why.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class PuntenInterface extends JFrame implements ActionListener{
    private JPanel panelknop = new JPanel(new GridLayout(4,1));
    private JButton knop1 = new JButton("Punt1");
    private JButton knop2 = new JButton("Punt2");
    private JButton knop3 = new JButton("Punt3");
    private JButton knop4 = new JButton("Teken");
    private JPanel paneltext = new JPanel(new GridLayout(1,4));
    private JTextField textveld1 = new JTextField();
    private JTextField textveld2 = new JTextField();
    private JLabel xcoord = new JLabel("X-Coordinaat: ");
    private JLabel ycoord = new JLabel("  Y-Coordiaat: ");
    private JPanel coordinaten = new JPanel(new GridLayout(4,1));
    private JLabel coordp1 = new JLabel();
    private JLabel coordp2 = new JLabel();
    private JLabel coordp3 = new JLabel();
    private JLabel geef = new JLabel("Geef de coordinaten van de drie punten in:");
    private JPanel quit = new JPanel(new GridLayout(1,3));
    private JButton reset = new JButton("Reset");
    private JButton exit = new JButton("Quit");
    private JPanel tekening = new JPanel();
               Punt p1 = new Punt(0, 0);
               Punt p2 = new Punt(0, 0);
               Punt p3 = new Punt(0, 0);
    public PuntenInterface(){
          setTitle("PuntenInterface");
          setBounds(500,500,800,800);
          Container c = getContentPane();
                c.setLayout(null);
          panelknop.setBounds(50,30,100,400);
                c.add(panelknop);
                panelknop.add(knop1);
                panelknop.add(knop2);
                panelknop.add(knop3);
                panelknop.add(knop4);
                paneltext.setBounds(160,30,300,30);
                c.add(paneltext);
                paneltext.add(xcoord);
                paneltext.add(textveld1);
                paneltext.add(ycoord);
                paneltext.add(textveld2);
                knop1.addActionListener(this);
                knop2.addActionListener(this);
                knop3.addActionListener(this);
                knop4.addActionListener(this);
                coordinaten.setBounds(160,80,400,100);
                c.add(coordinaten);
                coordinaten.add(geef);
                coordinaten.add(coordp1);
                coordinaten.add(coordp2);
                coordinaten.add(coordp3);
                quit.setBounds(160,450,200,30);
                c.add(quit);
                quit.add(reset);
                quit.add(exit);
                tekening.setBounds(160,150,400,400);
                setVisible(true);
public void actionPerformed(ActionEvent e){
        int x = 0;
        int y = 0;
        String sx = textveld1.getText();
        if (!sx.equals("")){
            x = Integer.parseInt(sx);
            textveld1.setText("");
        String sy = textveld2.getText();
        if (!sy.equals("")){
            y = Integer.parseInt(sy);
            textveld2.setText("");
        Object source = e.getSource();
        if (source == knop1){
            p1 = new Punt(x,y);
        else if (source == knop2){
             p2 = new Punt(x,y);
        else if (source == knop3){
              p3 = new Punt(x,y);
        else if (source == knop4){
            Puntenframe3 pf = new Puntenframe3(p1,p2,p3);
        if (source == knop1){
            int Coordinaat1 = Integer.parseInt(sx);
            int Coordinaat2 = Integer.parseInt(sy);
            coordp1.setText("X-Coordinaat punt 1:  " + Coordinaat1 + " ,Y-Coordinaat punt 1:  " + Coordinaat2);
            else if (source == knop2){
            int Coordinaat3 = Integer.parseInt(sx);
            int Coordinaat4 = Integer.parseInt(sy);
            coordp2.setText("X-Coordinaat punt 2:  " + Coordinaat3 + " ,Y-Coordinaat punt 2:  " + Coordinaat4);
            else if (source == knop3){
            int Coordinaat5 = Integer.parseInt(sx);
            int Coordinaat6 = Integer.parseInt(sy);
            coordp3.setText("X-Coordinaat punt 3:  " + Coordinaat5 + " ,Y-Coordinaat punt 3:  " + Coordinaat6);
        if (source == reset){
        textveld1.setText("");
        textveld2.setText("");
        coordp1.setText("");
        coordp2.setText("");
        coordp3.setText("");
        if (source == exit){
            System.exit(0);
}Thanks very much

Answer 1

Take your knop1 button for example. What do you do with that button that you're not doing with your reset button?
Hint: action listener.