Java Standard: Grafische Oberflächen mit Swing: leightweight Container: javax swing JSplitPane

import javax.swing.JFrame;
import javax.swing.JSplitPane;
import javax.swing.JPanel;

public class fenster extends JFrame {

	public fenster() {
		this.setSize(400, 300);
		this.setTitle("SplitPane beispiel");
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		JPanel linkepanel = new JPanel();
		JPanel rechtepanel = new JPanel();

		JSplitPane teiler = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, true,
				linkepanel, rechtepanel);
		teiler.setOneTouchExpandable(true);
		this.getContentPane().add(teiler);
	}

	public static void main(String[] args) {
		fenster p = new fenster();
		p.setVisible(true);
	}
}