Programmieren in Java - HostFiXX.de

Programmieren in Java
Bsp. 290 : JColorChooserTest
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JColorChooserTest extends JFrame
implements ActionListener
{
public JColorChooserTest()
{
super("Using JColorChooser");
// WindowUtilities.setNativeLookAndFeel();
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ System.exit(0); }
});
Container content = getContentPane();
content.setBackground(Color.white);
content.setLayout(new FlowLayout());
JButton colorButton
= new JButton("Choose Background Color");
colorButton.addActionListener(this);
content.add(colorButton);
setSize(300, 100);
setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
// Args are parent component, title, initial color
Color bgColor
= JColorChooser.showDialog(this,
"Choose Background Color",
getBackground());
if (bgColor != null)
getContentPane().setBackground(bgColor);
}
public static void main(String[] args)
{
new JColorChooserTest();
}
}
Nach Drücken des Button "ChooseBackgroundColor" erscheint
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