Main.java Source code

Java tutorial

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Here is the source code for Main.java

Source

import java.util.Date;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;

public class Main {

    private static JPanel createPanel() {
        JPanel panel = new JPanel();
        final JLabel label = new JLabel(new Date().toString());
        panel.add(label);
        panel.addAncestorListener(new AncestorListener() {
            @Override
            public void ancestorAdded(AncestorEvent event) {
                // start animation
                label.setText(new Date().toString());
            }

            @Override
            public void ancestorRemoved(AncestorEvent event) {
                // stop animation
            }

            @Override
            public void ancestorMoved(AncestorEvent event) {
            }
        });
        return panel;
    }

    public static void main(String[] args) {
        JFrame f = new JFrame();
        final JTabbedPane jtp = new JTabbedPane();
        jtp.add("One", createPanel());
        jtp.add("Two", createPanel());
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(jtp);
        f.pack();
        f.setVisible(true);
    }
}