BorderLayout trong Java Swing

public class BorderLayout
   extends Object
      implements LayoutManager2, Serializable

package vn.viettuts.swing;

import java.awt.BorderLayout;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.WindowConstants;

public class BorderLayoutExam1 {
    JFrame frame;

    BorderLayoutExam1() {
        frame = new JFrame();

        JButton b1 = new JButton("NORTH");
        JButton b2 = new JButton("SOUTH");
        JButton b3 = new JButton("EAST");
        JButton b4 = new JButton("WEST");
        JButton b5 = new JButton("CENTER");

        frame.add(b1, BorderLayout.NORTH);
        frame.add(b2, BorderLayout.SOUTH);
        frame.add(b3, BorderLayout.EAST);
        frame.add(b4, BorderLayout.WEST);
        frame.add(b5, BorderLayout.CENTER);

        frame.setSize(400, 300);
        frame.setVisible(true);
        frame.setTitle("Ví dụ BorderLayout trong Java Swing");
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new BorderLayoutExam1();
    }
}

package vn.viettuts.swing;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

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

public class BorderLayoutExam2 {
    private JFrame frame;
    private JLabel headerLabel;
    private JLabel statusLabel;
    private JPanel controlPanel;

    public BorderLayoutExam2(){
       prepareGUI();
    }

    public static void main(String[] args) {
        BorderLayoutExam2 demo = new BorderLayoutExam2();
        demo.showBorderLayoutDemo();
    }

    private void prepareGUI() {
        frame = new JFrame();
        frame.setSize(400, 400);
        frame.setLayout(new GridLayout(3, 1));
        headerLabel = new JLabel("", JLabel.CENTER);
        statusLabel = new JLabel("", JLabel.CENTER);
        statusLabel.setSize(350, 100);
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent windowEvent) {
                System.exit(0);
            }
        });
        controlPanel = new JPanel();
        controlPanel.setLayout(new FlowLayout());
        frame.add(headerLabel);
        frame.add(controlPanel);
        frame.add(statusLabel);
        frame.setVisible(true);
        frame.setTitle("Ví dụ BorderLayout trong Java Swing");
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    private void showBorderLayoutDemo() {
        headerLabel.setText("Layout in action: BorderLayout");
        JPanel panel = new JPanel();
        panel.setBackground(Color.darkGray);
        panel.setSize(300, 300);
        BorderLayout layout = new BorderLayout();
        layout.setHgap(10);
        layout.setVgap(10);
        panel.setLayout(layout);

        panel.add(new JButton("Center"), BorderLayout.CENTER);
        panel.add(new JButton("Line Start"), BorderLayout.LINE_START);
        panel.add(new JButton("Line End"), BorderLayout.LINE_END);
        panel.add(new JButton("East"), BorderLayout.EAST);
        panel.add(new JButton("West"), BorderLayout.WEST);
        panel.add(new JButton("North"), BorderLayout.NORTH);
        panel.add(new JButton("South"), BorderLayout.SOUTH);
        controlPanel.add(panel);
        frame.setVisible(true);
    }
}