FocusCycleSample.java Source code

Introduction

Here is the source code for FocusCycleSample.java

Source

import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class FocusCycleSample {
    public static void main(String args[]) {
        JFrame frame = new JFrame("Focus Cycle Sample");

        Container contentPane = frame.getContentPane();
        contentPane.setLayout(new GridLayout(3, 3));
        for (int i = 0; i < 8; i++) {
            JButton button = new JButton("" + i);
            contentPane.add(button);
        }

        JPanel panel = new FocusCycleConstrainedJPanel();
        panel.setLayout(new GridLayout(1, 3));
        for (int i = 0; i < 3; i++) {
            JButton button = new JButton("" + (i + 3));
            panel.add(button);
        }
        contentPane.add(panel);

        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}

class FocusCycleConstrainedJPanel extends JPanel {
    public boolean isFocusCycleRoot() {
        return true;
    }
}