GUI代码部分：
/**
* @(#)CnToSpellGUI.java
* kindani
* 2004-10-25??
* */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
/**
*
*
- JDK版本
- 1.4
* @author KIN
* @version 1.0
* @see
* @since 1.0
*/
public class CnToSpell2GUI extends JFrame {
private CnToSpell2GUI c = null;
public CnToSpell2GUI () {
super("Cn to Spell");
setSize(800,100);
getContentPane().setLayout(new FlowLayout());
// component layout
JTextArea from = new JTextArea(5,20);
JTextArea to = new JTextArea(5,20);
JButton b = new JButton("cn to pinyin");
getContentPane().add(new JLabel("From:"));
getContentPane().add(from);
getContentPane().add(b);
getContentPane().add(new JLabel("To:"));
getContentPane().add(to);
// action handle
b.addActionListener(new Cn2PinyinActionListener(from,to));
setVisible(true);
// set this for pack
c = this;
}
/**button action listener to convert text to pinyin from one textbox to another textbox*/
class Cn2PinyinActionListener implements ActionListener{
private JTextArea from = null;
private JTextArea to = null;
public Cn2PinyinActionListener(JTextArea from, JTextArea to) {
this.from = from;
this.to = to;
}
public void actionPerformed(ActionEvent e) {
if (from.getText().length() == 0) {
JOptionPane.showMessageDialog(from,"From text is empty!","Warning",JOptionPane.WARNING_MESSAGE);
