java 记事本本源代码.

1. //handel.java
2. package abc.jdm;
3. import abc.jdm.*;
4. import java.awt.Color;
5. import java.awt.PrintJob;
6. import java.awt.*;
7. import java.awt.event.*;
8. import javax.swing.*;
9. import java.io.*;
10. import javax.print.*;
12. import sun.rmi.runtime.GetThreadPoolAction;
14. import java.awt.datatransfer.*; 
16. public class handel {
17.     public String test(String txt){
18.         return txt.toString();
19.     }
21. }
22. class newfile extends Thread implements ActionListener{
23.     public void actionPerformed(ActionEvent e){
24.         new newfile().start();
25.         }
26.     public void run(){
27.         new MyFrame();
28.     }
29. }
30. class savefile implements ActionListener{
31.     public void actionPerformed(ActionEvent e){
32.         JFileChooser jfile=new JFileChooser();
33.         jfile.setFileFilter(new javax.swing.filechooser.FileFilter() {
34.                public boolean accept(File f) { //设定可用的文件的后缀名
35.                  if(f.getName().endsWith(".java")||f.isDirectory()){
36.                    return true;
37.                  }
38.                  return false;
39.                }
40.                public String getDescription() {
41.                  return "文本文件(*.txt)";
42.                }
43.              });
44.         int result=jfile.showSaveDialog(null);
45.         if(result==JFileChooser.APPROVE_OPTION){
46.             
47.             
48.             File dir=jfile.getCurrentDirectory();
49.             File file=jfile.getSelectedFile();
50.             write(new File(dir,file.getName()),MyFrame.mytext.getText());
51.         }
52.         if(result==JFileChooser.CANCEL_OPTION){
53.             
54.         }
55.     }
56.     public void write(File file,String str){
57.         try{
58.             PrintWriter write=new PrintWriter(new OutputStreamWriter(new FileOutputStream(file),"GBK"));
59.             write.println(str);
60.             write.close();
61.         }
62.         catch(IOException e){
63.             throw new RuntimeException(e);
64.         }
65.     }
66.     
67. }
68. //
69. class quitframe implements ActionListener{
70.     public void actionPerformed(ActionEvent e){
71.         
72.         String a=MyFrame.mytext.getText();
73.         if(a==""){
74.         System.exit(0);}
75.         else{
76.             int result=JOptionPane.showConfirmDialog(null,"文件尚未保存，你决定要退出吗？");
77.         if(result==JOptionPane.OK_OPTION)
78.             System.exit(0);
79.         else
80.             MyFrame.mytext.setText(a);
81.         }
82.         
83.     }
84.     
85. }
86. //
87. class about implements ActionListener{
88.     public void actionPerformed(ActionEvent e){
89.         JOptionPane.showMessageDialog(null,"该软件由java编写，开发平台为myeclipse /n 希望大家多多支持！/t 孟德军","关于",JOptionPane.INFORMATION_MESSAGE);
90.     }
91. }
92. //
93. class openfile implements ActionListener{
94.     public void actionPerformed(ActionEvent e){
95.         
97.         JFileChooser jfile=new JFileChooser();
98.         jfile.setFileFilter(new javax.swing.filechooser.FileFilter() {
99.                public boolean accept(File f) { //设定可用的文件的后缀名
100.                  if(f.getName().endsWith(".java")||f.isDirectory()){
101.                    return true;
102.                  }
103.                  return false;
104.                }
105.                public String getDescription() {
106.                  return "文本文件(*.txt)";
107.                }
108.              });
109.         int result=jfile.showOpenDialog(null);
110.         if(result==JFileChooser.APPROVE_OPTION){
111.             File dir=jfile.getCurrentDirectory();
112.             File file=jfile.getSelectedFile();
113.             MyFrame.mytext.setText(read(new File(dir,file.getName())));
114.             //new MyFrame().mytext.setText(t)
115.         }
116.         if(result==JFileChooser.CANCEL_OPTION){
117.             
118.         }
119.     }
120.     //
121.     public String read(File file){
122.         try{
123.             BufferedReader read=new BufferedReader(new InputStreamReader(new FileInputStream(file),"GBK"));
124.             String data=null;
125.             StringBuffer buffer=new StringBuffer();
126.             while((data==read.readLine())){
127.                 buffer.append(data+"/n");
128.                 read.close();
129.             }
130.             return buffer.toString();
131.         }
132.         catch(IOException e){
133.             throw new RuntimeException(e);
134.         }
135.         
136.     }
138. }//
139. //color set
140. class colorset implements ActionListener{
141.     public void actionPerformed(ActionEvent e)
142.       {
143.      //显示颜色对话框
144.         
145.      Color newcolor=JColorChooser.showDialog(null, "颜色设置",null);
146.         MyFrame.mytext.setBackground(newcolor);
147.      
148.       }
149.     
150.     }
151. class printframe implements ActionListener{
152.     public void actionPerformed(ActionEvent e){
153.         /*PrintService service;
154.         java.awt.PrintJob b;
155.         */
156.         
157.         
159.     }
160.     
161. }
162. class all extends Frame implements ActionListener{
163.     public void actionPerformed(ActionEvent e){
164.         
165.         
166.         Clipboard clipboard=null; 
167.         clipboard=getToolkit().getSystemClipboard();//获取系统剪贴板。
168.         if(e.getActionCommand()=="复制"){
169.         String temp=MyFrame.mytext.getSelectedText(); //拖动鼠标选取文本。 
170.         StringSelection text=new StringSelection(temp); 
171.         clipboard.setContents(text,null); 
172.         }
173.         else if(e.getActionCommand()=="粘贴"){
174.             Transferable contents=clipboard.getContents(this); 
175.             DataFlavor flavor= DataFlavor.stringFlavor; 
176.             if( contents.isDataFlavorSupported(flavor)) 
177.             try{ String str; 
178.             str=(String)contents.getTransferData(flavor); 
179.             MyFrame.mytext.append(str); 
180.             }
181.             catch(Exception x){
182.             
183.             }
184.             //
185.             else if(e.getActionCommand()=="剪切"){
186.                  String temp=MyFrame.mytext.getSelectedText(); //拖动鼠标选取文本。 
187.                 StringSelection text=new StringSelection(temp); 
188.                 clipboard.setContents(text,null); 
189.                 int start=MyFrame.mytext.getSelectionStart(); 
190.                 int end =MyFrame.mytext.getSelectionEnd(); 
191.                 MyFrame.mytext.replaceRange("",start,end) ; //从Text1中删除被选取的文本。 
192.                  
193.             }
194.             else if(e.getActionCommand()=="全选"){
195.                 String alltemp=MyFrame.mytext.toString();
196.                 StringSelection alltext=new StringSelection(alltemp);
197.                 clipboard.getContents(alltext);
198.             }
199.             }
200.     } 
201.         
202. }
203. class display implements ActionListener{
204.     public void actionPerformed(ActionEvent e){
205.         new search();
206.     }
207. }
208. class osinfo implements ActionListener{
209.     public void actionPerformed(ActionEvent e){
210.         Runtime rt = Runtime.getRuntime();
211.         JOptionPane.showConfirmDialog(null,"剩余内存:  "+rt.freeMemory()+" KB"+"/n"+"总内存:  "+rt.totalMemory()+" KB","系统信息",
212.                 JOptionPane.OK_OPTION,
213.                 JOptionPane.WARNING_MESSAGE);
214.     }
215.     
216. }