Question

JAVA界面

能不能帮我编一个简单的界面，就是能够打开计算机的文件夹，并将文件夹的路径返回给我。（java初学者）
最好还有一个输出窗口，输出字符串

Answer 1

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;

/**
* @author xixi
* @2011-4-15
*/
@SuppressWarnings("serial")
public class MainFrame extends JFrame{
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable(){

public void run() {
new MainFrame().setVisible(true);
}

});
}

private JMenuBar menubar = new JMenuBar();
private JMenu fileMenu = new JMenu("File");
private JMenuItem openItem = new JMenuItem("open"){
{
addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {
JFileChooser fileChooser=new JFileChooser();
fileChooser.showOpenDialog(MainFrame.this);
File file = fileChooser.getSelectedFile();
System.out.println("***the opened file = "+file);
JOptionPane.showMessageDialog(MainFrame.this, file.toString());
}

});
}
};
{
fileMenu.add(openItem);
menubar.add(fileMenu);
this.setJMenuBar(menubar);
this.setSize(new Dimension(600,500));
this.setLocation(300, 100);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
}
}

Answer 2

去查JFileChooser这个类