import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JSplitPane;
public class ExpandableSplit {
public static void main(String args[]) {
String title = (args.length == 0 ? "Expandable Split" : args[0]);
JFrame vFrame = new JFrame(title);
vFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JComponent leftButton = new JButton("Top");
JComponent rightButton = new JButton("Bottom");
final JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
splitPane.setOneTouchExpandable(true);
splitPane.setLeftComponent(leftButton);
splitPane.setRightComponent(rightButton);
ActionListener oneActionListener = new ActionListener() {
public void actionPerformed(ActionEvent event) {
splitPane.resetToPreferredSizes();
}
};
((JButton) rightButton).addActionListener(oneActionListener);
ActionListener anotherActionListener = new ActionListener() {
public void actionPerformed(ActionEvent event) {
splitPane.setDividerLocation(10);
splitPane.setContinuousLayout(true);
}
};
((JButton) leftButton).addActionListener(anotherActionListener);
vFrame.getContentPane().add(splitPane, BorderLayout.CENTER);
vFrame.setSize(300, 150);
vFrame.setVisible(true);
}
}
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