GUI编程及文件对话框的使用

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

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;



@SuppressWarnings("serial")
public class Filechooser extends JFrame implements ActionListener{

	JButton open=null;
	public static void main (String[] args){
		new Filechooser();//构造一个指向用户的默认目录Filechooser
	}
	public Filechooser(){
		open=new JButton("打开");
		this.add(open);
		this.setBounds(100,100,100,100);
		this.setVisible(true);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		open.addActionListener(this);
	}
	public void actionPerformed(ActionEvent e){
		JFileChooser j=new JFileChooser();
		j.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);//设置Filechooser
		j.showDialog(new JLabel(),"选择");// 弹出具有自定义 approve 按钮的自定义文件选择器对话框
		File file=j.getSelectedFile();
			if(file.isDirectory()){
				System.out.println("文件夹        "+file.getAbsolutePath());
				
			}else if(file.isFile()){
				System.out.println("文件夹        "+file.getAbsolutePath());
			}
			System.out.println(j.getSelectedFile().getName());
		
	}
}

<img src="http://img.blog.csdn.net/20150703133924135?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvYXlha2FrYXpl/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt="" />

GUI编程及文件对话框的使用

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原文地址：http://blog.csdn.net/ayakakaze/article/details/46740721