[Java] [Exer3] Chương trình xem ảnh đơn giản

/*
* cusomized by: mathhoang
* Y!M: vietnam_hoangminhnguyen@yahoo.com
* addr: http://mathhoang.blogspot.com
*
*/

package ImageViewer;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;

public class MyFile {
    public static void main(String[] args) {
        JFrame myFirstGUI = new MyFirstGUI();
        myFirstGUI.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        myFirstGUI.setVisible(true);
    }
   
}

class MyFirstGUI extends JFrame
{
    private static final int GUI_HEIGHT = 300;
    private static final int GUI_WIDTH = 400;
    private JLabel label;
    private JFileChooser chooser;
   
    public MyFirstGUI(){
        setTitle("This is my first Java GUI Application");
        setBackground(Color.blue);
        setDefaultLookAndFeelDecorated(false);
        setSize(GUI_HEIGHT, GUI_WIDTH);
       
        // set up components
        label = new JLabel();
        add(label);
        chooser = new JFileChooser(new File("."));
       
        JMenuBar menuBar = new JMenuBar();
        setJMenuBar(menuBar);
       
        JMenu menuItem = new JMenu("File");
        menuBar.add(menuItem);
       
        JMenuItem openItem = new JMenuItem("Open");
        menuItem.add(openItem);
        openItem.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int result = chooser.showOpenDialog(null);
                if (result == JFileChooser.APPROVE_OPTION){
                    String path = chooser.getSelectedFile().getPath();
                    label.setIcon(new ImageIcon(path));
                }
               
            }
        });
       
        JMenuItem exitItem = new JMenuItem("Exit");
        menuItem.add(exitItem);
        exitItem.addActionListener(new ActionListener() {
           
            @Override
            public void actionPerformed(ActionEvent e) {
                // TODO Auto-generated method stub
                System.exit(0);
            }
        });
    }
}

---
name: nguyen minh hoang
Y!M : vietnam_hoangminhnguyen@yahoo.com
net name: mathhoang