import java.awt.BorderLayout;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.event.InternalFrameEvent;
import javax.swing.event.InternalFrameListener;
public class InternalFrameListenerDemo {
public static void main(final String[] args) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JDesktopPane desktop = new JDesktopPane();
JInternalFrame internalFrame = new JInternalFrame("Can Do All", true, true, true, true);
desktop.add(internalFrame);
internalFrame.setBounds(25, 25, 200, 100);
JLabel label = new JLabel(internalFrame.getTitle(), JLabel.CENTER);
internalFrame.add(label, BorderLayout.CENTER);
internalFrame.setVisible(true);
internalFrame.addInternalFrameListener(new InternalFrameListener(){
public void internalFrameClosing(InternalFrameEvent e) {
displayMessage("Internal frame closing", e);
}
public void internalFrameClosed(InternalFrameEvent e) {
displayMessage("Internal frame closed", e);
}
public void internalFrameOpened(InternalFrameEvent e) {
displayMessage("Internal frame opened", e);
}
public void internalFrameIconified(InternalFrameEvent e) {
displayMessage("Internal frame iconified", e);
}
public void internalFrameDeiconified(InternalFrameEvent e) {
displayMessage("Internal frame deiconified", e);
}
public void internalFrameActivated(InternalFrameEvent e) {
displayMessage("Internal frame activated", e);
}
public void internalFrameDeactivated(InternalFrameEvent e) {
displayMessage("Internal frame deactivated", e);
}
void displayMessage(String prefix, InternalFrameEvent e) {
System.out.println(prefix + ": " + e.getSource());
}
});
desktop.setDragMode(JDesktopPane.OUTLINE_DRAG_MODE);
frame.add(desktop, BorderLayout.CENTER);
frame.setSize(500, 300);
frame.setVisible(true);
}
}