fork download
copy 
  1. import java.io.*;
  2. import java.awt.*;
  3. import java.awt.event.*;
  4.  
  5. public class TextMemo {
  6.     public static void main(String args[]) {
  7.         TextFrame tf = new TextFrame();
  8.     }
  9. }
  10.  
  11. class TextFrame implements ActionListener{
  12.     Frame frm;
  13.     MenuBar mb;
  14.     Menu menu1;
  15.     MenuItem mi1,mi2,mi3;
  16.     TextArea ta;
  17.  
  18.     public TextFrame(){
  19.         frm = new Frame("メモ帳");
  20.         mb = new MenuBar();
  21.         frm.setMenuBar(mb);
  22.         menu1 = new Menu("メニュー");
  23.         mi1 = new MenuItem("新規");
  24.         menu1.add(mi1);
  25.         mi1.addActionListener(this);
  26.         mi2 = new MenuItem("読込");
  27.         menu1.add(mi2);
  28.         mi2.addActionListener(this);
  29.         mi3 = new MenuItem("保存");
  30.         menu1.add(mi3);
  31.         mi3.addActionListener(this);
  32.         mb.add(menu1);
  33.         ta = new TextArea();
  34.         frm.add(ta);
  35.  
  36.         frm.setSize(400, 200);
  37.         frm.setVisible(true);
  38.  
  39.         windowexit();
  40.     }
  41.  
  42.     public void actionPerformed(ActionEvent e){
  43.         new FileIO(e, this);
  44.     }
  45.  
  46.     private void windowexit(){
  47.         frm.addWindowListener(new WindowAdapter() {
  48.             public void windowClosing(WindowEvent e){
  49.                 System.exit(0);
  50.             }
  51.         });
  52.     }
  53. }
  54.  
  55. class FileIO {
  56.     TextFrame frame;
  57.     Frame frmd = new Frame();
  58.     FileDialog fd;
  59.     String fileName;
  60.     public FileIO(ActionEvent s, TextFrame frame) {
  61.         if(s.getSource() == frame.mi1) {
  62.             frame.ta.setText("");
  63.         } else if(s.getSource() == frame.mi2) {
  64.             fd = new FileDialog(frmd, "開く", FileDialog.LOAD);
  65.             fd.setVisible(true);
  66.             fileName = fd.getDirectory() + fd.getFile();
  67.             File file = new File(fileName);
  68.             BufferedReader br = null;
  69.             try {
  70.                 br = new BufferedReader(new FileReader(file));
  71.                 for(String line; (line=br.readLine()) != null; ) {
  72.                     frame.ta.append(line + "\n");
  73.                 }
  74.             } catch(Exception ex) {
  75.                 ex.printStackTrace();
  76.             } finally {
  77.                 if(br != null) { try { br.close(); } catch(Exception ex) {} }
  78.             }
  79.         } else if(s.getSource() == frame.mi3) {
  80.             fd = new FileDialog(frmd, "保存", FileDialog.SAVE);
  81.             fd.setVisible(true);
  82.             fileName = fd.getDirectory() + fd.getFile();
  83.             File file = new File(fileName);
  84.             BufferedWriter bw = null;
  85.             try {
  86.                 bw = new BufferedWriter(new FileWriter(file));
  87.                 bw.write(frame.ta.getText());
  88.                 bw.flush();
  89.             } catch(Exception ex) {
  90.                 ex.printStackTrace();
  91.             } finally {
  92.                 if(bw != null) { try { bw.close(); } catch(Exception ex) {} }
  93.             }
  94.         }
  95.     }
  96. }
Not running #stdin #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
https://ideone.com/f18xc
language:
Java (12.0.1)
created:
12 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!