Java编程——单词排序

 1 //WordSort.java
 2 package javaapplication3;
 3 import java.awt.*;
 4 import java.awt.event.*;
 5 import javax.swing.*;
 6 import javax.swing.event.*;
 7 import java.util.*;
 8 import javax.swing.text.Document;
 9 
10 public class WordSort extends JFrame implements DocumentListener,ActionListener{
11     JTextArea text1,text2;
12     JButton buttonClear;
13     WordSort(){
14         setBounds(100,100,350,300);
15         setVisible(true);
16         validate();
17         
18         setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
19         text1=new JTextArea(20,15);
20         text2=new JTextArea(20,15);
21         buttonClear=new JButton("清空");
22         text1.setLineWrap(true);
23         text1.setWrapStyleWord(true);
24         text2.setLineWrap(true);
25         text2.setWrapStyleWord(true);
26         add(text1);
27         add(text2);
28         add(buttonClear);
29         text2.setEditable(false);
30         Box box1=Box.createHorizontalBox();
31         Box box2=Box.createHorizontalBox();
32         box1.add(new JLabel("请输入单词："));
33         box1.add(new JScrollPane(text1));
34         box2.add(new JLabel("排序后的单词序列："));
35         box2.add(new JScrollPane(text2));
36         Box box3=Box.createHorizontalBox();
37         box3.add(box1);
38         box3.add(box2);
39         Container con=getContentPane();
40         con.add(box3,BorderLayout.SOUTH);
41         con.validate();
42         text1.getDocument().addDocumentListener(this);
43         
44         buttonClear.addActionListener(this);
45     }
46     public void insertUpdate(DocumentEvent e){
47         handle();
48     }
49     public void removeUpdate(DocumentEvent e){
50         handle();
51     }
52     public void changedUpdate(DocumentEvent e){
53         handle();
54     }
55     public void handle(){
56         String s=text1.getText();
57         StringTokenizer fenxi=new StringTokenizer(s,",
");
58         int n=fenxi.countTokens();
59         String a[]=new String[n];
60         for(int i=0;i<=n-1;i++){
61             String temp=fenxi.nextToken();
62             a[i]=temp;
63         }
64         Arrays.sort(a);
65         text2.setText(null);
66         for(int i=0;i<n;i++){
67             text2.append(a[i]+"
");
68         }        
69     }
70     public void actionPerformed(ActionEvent e){
71         text1.setText(null);}
72     public static void main(String args[]){
73         WordSort win=new WordSort();
74     }
75     }
76