Archief - [prob] Java in Leopard

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;

import javax.swing.WindowConstants;
import javax.swing.SwingUtilities;



public class JackpotFrame extends javax.swing.JFrame {
	private JTextField txfG1;
	private JTextField txfKrediet;
	private JLabel lblKrediet;
	private JButton btnSpeel;
	private JTextField txfG3;
	private JTextField txfG2;

	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				JackpotFrame inst = new JackpotFrame();
				inst.setLocationRelativeTo(null);
				inst.setVisible(true);
			}
		});
	}
	
	public JackpotFrame() {
		super("Jackpot");
		initGUI();
	}
	
	private void initGUI() {
		try {
			setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
			getContentPane().setLayout(null);
			{
				txfG1 = new JTextField();
				getContentPane().add(txfG1);
				txfG1.setBounds(39, 42, 51, 49);
				txfG1.setEditable(false);
			}
			{
				txfG2 = new JTextField();
				getContentPane().add(txfG2);
				txfG2.setBounds(90, 42, 49, 49);
				txfG2.setEditable(false);
			}
			{
				txfG3 = new JTextField();
				getContentPane().add(txfG3);
				txfG3.setBounds(139, 42, 45, 49);
				txfG3.setEditable(false);
			}
			{
				btnSpeel = new JButton();
				getContentPane().add(btnSpeel);
				btnSpeel.setText("Speel");
				btnSpeel.setBounds(282, 42, 73, 22);
				btnSpeel.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent evt) {
						btnSpeelActionPerformed(evt);
					}
				});
			}
			{
				lblKrediet = new JLabel();
				getContentPane().add(lblKrediet);
				lblKrediet.setText("Krediet");
				lblKrediet.setBounds(12, 150, 90, 15);
			}
			{
				txfKrediet = new JTextField();
				getContentPane().add(txfKrediet);
				txfKrediet.setBounds(133, 138, 51, 52);
				txfKrediet.setEditable(false);
			}
			pack();
			setSize(400, 300);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	private void btnSpeelActionPerformed(ActionEvent evt) {
		System.out.println("btnSpeel.actionPerformed, event="+evt);
			JOptionPane.showMessageDialog(null,"Hallo");
	}

}

package p11vb0203;
import javax.swing.*;

public class Main extends JFrame {
    public static void main(String[] args) {
        JFrame frame = new Main();
        frame.setSize(400,400);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocation(400,400);
        frame.setTitle("test");
        frame.setVisible(true);
        frame.setContentPane(new Paneel());
    }
}

class Paneel extends JPanel {
    JButton test;
    public Paneel() {
        test = new JButton("test");
        add(test);
    }
}