GUI_文件管理器(练习)

package com.mywindow.test;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.io.File;import javax.swing.JButton;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;/**
* This code was edited or generated using CloudGarden's Jigloo
* SWT/Swing GUI Builder, which is free for non-commercial
* use. If Jigloo is being used commercially (ie, by a corporation,
* company or business for any purpose whatever) then you
* should purchase a license for each developer using Jigloo.
* Please visit www.cloudgarden.com for details.
* Use of Jigloo implies acceptance of these licensing terms.
* A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR
* THIS MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED
* LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE.
*/
public class NewJFrame extends javax.swing.JFrame {
private static final String LINE_SEPARATOR = System.getProperty("line.separator");
private JTextField jTextField1;
private JButton jButton1;
private JTextArea jTextArea1; /**
* Auto-generated main method to display this JFrame
*/
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
NewJFrame inst = new NewJFrame();
inst.setLocationRelativeTo(null);
inst.setVisible(true);
}
});
} public NewJFrame() {
super();
initGUI();
} private void initGUI() {
try {
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
getContentPane().setLayout(null);
{
jTextField1 = new JTextField();
getContentPane().add(jTextField1, "Center");
jTextField1.setBounds(12, 27, 268, 27);
jTextField1.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent evt) {
jTextField1KeyPressed(evt);
}
});
}
{
jButton1 = new JButton();
getContentPane().add(jButton1);
jButton1.setText("\u8f6c\u5230");
jButton1.setBounds(292, 28, 76, 24);
jButton1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
}
{
jTextArea1 = new JTextArea();
getContentPane().add(jTextArea1);
jTextArea1.setBounds(12, 65, 356, 185);
}
pack();
setSize(400, 300);
} catch (Exception e) {
//add your error handling code here
e.printStackTrace();
}
} //Button的活动监听器
private void jButton1ActionPerformed(ActionEvent evt) {
showDir();
} private void showDir() {
/*
* 通过点击按钮获取文本框目录
* 将目录中的内容显示到文本区域中
* */
String dir_str = jTextField1.getText(); File dir = new File(dir_str); if(dir.exists() && dir.isDirectory()){
jTextArea1.setText(""); String[] names = dir.list(); for(String name : names){
jTextArea1.append(name+LINE_SEPARATOR);
}
}
} private void jTextField1KeyPressed(KeyEvent evt) { if(evt.getKeyCode()==KeyEvent.VK_ENTER){
showDir();
} }}