R
Cioa Zäme
Kann mir Jemand sagen warum der Panel mit BoxLayout nicht gezeigt wird?
/*
* Java class source file
* Copyright© : Haag-Streit Diagnostics
* Created on : 21.06.2016 by robbiar
*
* Revision of last commit : $Rev$
* Author of last commit : $Author$
* Date of last commit : $Date$
* =============================================================================
* =
*/
package swing_eins;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyListener;
import java.util.EventObject;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
/**
*
* @author robbiar
*/
public class win_start
extends JFrame
implements ActionListener {
private static final KeyListener keyListener = null;
private final JTextField edt_res;
public static void main(final String[] args) {
// TODO Auto-generated method stub
final win_start fenster = new win_start();
fenster.setSize(300, 300);
fenster.setLocation(200, 200);
fenster.setName("programm");
fenster.pack();
fenster.setVisible(true);
}
public win_start() {
super("das programm");
// Resultat anzeigen
final JPanel pn_text = new JPanel();
final JLabel lbl_name = new JLabel("Resultat");
pn_text.add(lbl_name);
edt_res = new JTextField(20);
edt_res.setToolTipText("Resultat der Berechnung");
edt_res.addFocusListener(null);
edt_res.addKeyListener(keyListener);
pn_text.add(edt_res);
pn_text.setBorder(BorderFactory.createEtchedBorder());
getContentPane().add(pn_text, BorderLayout.NORTH);
// Buttons aufbauen
final JPanel pn_buttons = new JPanel();
final JPanel pn_eins = new JPanel();
final JPanel pn_zwei = new JPanel();
final JPanel pn_drei = new JPanel();
final JPanel pn_vier = new JPanel();
final JButton btn_nul = new JButton("0");
// btn_nul.setLayout(null);
// btn_nul.setBounds(1, 500, 60, 20);
btn_nul.setBackground(Color.yellow);
btn_nul.addActionListener(this);
pn_eins.add(btn_nul);
final JButton btn_eins = new JButton("1");
btn_eins.addActionListener(this);
// btn_eins.setLayout(null);
// btn_eins.setBounds(1, 550, 60, 20);
pn_eins.add(btn_eins);
final JButton btn_zwei = new JButton("2");
// btn_zwei.setLayout(null);
btn_zwei.addActionListener(this);
pn_eins.add(btn_zwei);
final JButton btn_drei = new JButton("3");
// btn_drei.setLayout(null);
btn_drei.addActionListener(this);
pn_zwei.add(btn_drei);
final JButton btn_vier = new JButton("4");
// btn_vier.setLayout(null);
btn_vier.addActionListener(this);
pn_zwei.add(btn_vier);
final JButton btn_fuenf = new JButton("5");
// btn_fuenf.setLayout(null);
btn_fuenf.addActionListener(this);
pn_zwei.add(btn_fuenf);
final JButton btn_sechs = new JButton("6");
// btn_sechs.setLayout(null);
btn_sechs.addActionListener(this);
pn_zwei.add(btn_sechs);
final JButton btn_sieben = new JButton("7");
// btn_sieben.setLayout(null);
btn_sieben.addActionListener(this);
pn_drei.add(btn_sieben);
final JButton btn_acht = new JButton("8");
// btn_acht.setLayout(null);
btn_acht.addActionListener(this);
pn_drei.add(btn_acht);
final JButton btn_neun = new JButton("9");
// btn_neun.setLayout(null);
btn_neun.addActionListener(this);
pn_drei.add(btn_neun);
pn_buttons.setBorder(BorderFactory.createEtchedBorder());
getContentPane().add(pn_buttons, BorderLayout.SOUTH);
// edt_res.setText("eingabe");
pn_eins.setLayout(new BoxLayout(pn_eins, BoxLayout.X_AXIS));
pn_eins.setBackground(Color.green);
pn_eins.setToolTipText("das einser Ort");
getContentPane().add(pn_eins);
getContentPane().add(pn_zwei, BoxLayout.X_AXIS);
getContentPane().add(pn_drei, BoxLayout.X_AXIS);
getContentPane().add(pn_vier, BoxLayout.X_AXIS);
}
@Override
public void actionPerformed(final ActionEvent event) {
final String cmd = event.getActionCommand();
final Object was = event.getSource();
try {
String name = was.toString();
final int pos = name.indexOf("[");
name = name.substring(0, pos);
if (name.equals("javax.swing.JTextField")) {
// JTextField neu <? extends Object> = was.getClass();
((JTextField) was).setText("ereignis");
}
if (name.equals("javax.swing.JButton")) {
String text = edt_res.getText();
text += cmd;
edt_res.setText(text);
}
// PLAF-Klasse auswählen
String plaf = "unknown";
plaf = cmd;
// LAF umschalten
UIManager.setLookAndFeel(plaf);
SwingUtilities.updateComponentTreeUI(this);
} catch (final UnsupportedLookAndFeelException e) {
System.err.println(e.toString());
} catch (final ClassNotFoundException e) {
System.err.println(e.toString());
} catch (final InstantiationException e) {
System.err.println(e.toString());
} catch (final IllegalAccessException e) {
System.err.println(e.toString());
}
}
public void actFocusListener(final KeyListener event) {
final Object was = ((EventObject) event).getSource();
String name = was.toString();
final int pos = name.indexOf("[");
name = name.substring(0, pos);
if (was.equals("javax.swing.JTextField")) {
// JTextField neu <? extends Object> = was.getClass();
((JTextField) was).setText("focus!");
}
}
}
Danke für eure Hilfe.
Gruss Renato
