GUI (Practice-open and save files)

* * Program Head NOTE start * Copyright and version Statement of the program (c) 2011, University of Yantai Computer Students * All rights reserved.   
* File name: GUI (Practice-open and save files) * Author: Shigung * Completion Date: September 22, 2011
* Version Number: x1.0 * Description of tasks and solutions * Input Description: * Problem Description: * Program output: * program Head of the comment end * * * package xue;
Import java.awt.*;
Import java.awt.event.*;

Import java.io.*;
	public class Mymenutest {/** * @param args * * private Frame F;
	Private MenuBar Bar;
	Private TextArea ta;
	Private Menu Filemenu;
	
	Private MenuItem Openitem, SaveItem, Closeitem;
	
	Private FileDialog Opendia, Savedia;
	private file file;
	Mymenutest () {init ();
		public void init () {//TODO auto-generated method Stub f = new Frame (' my Window ');
		
		F.setbounds (300, 100, 650, 600);
		
		bar = new MenuBar ();
		
		Ta = new TextArea ();
		
		Filemenu = new Menu ("file");
		Openitem = new MenuItem ("open");
		SaveItem = new MenuItem ("Save");
		
		Closeitem = new MenuItem ("Exit"); FileMenu.add (Openitem);
		Filemenu.add (SaveItem);
		Filemenu.add (Closeitem);
		
		Bar.add (Filemenu);
		
		F.setmenubar (bar);
		Opendia = new FileDialog (f, "I want to open", filedialog.load);
		
		Savedia = new FileDialog (f, "I want to save", Filedialog.save);
		F.add (TA);
		
		MyEvent ();

	F.setvisible (TRUE);
			private void MyEvent () {//TODO auto-generated Method Stub Saveitem.addactionlistener (new ActionListener () {
					
					public void actionperformed (ActionEvent e) {if (file = = null) {savedia.setvisible (true);
					String Dirpath = Savedia.getdirectory ();
					
					String fileName = Savedia.getfile ();
					if (Dirpath = null | | | fileName = NULL) {return;	
				File = new file (Dirpath, fileName);
					try {bufferedwriter BUFW = new BufferedWriter (new FileWriter (file));
					String text = Ta.gettext ();
					Bufw.write (text);
					Bufw.flush ();
				Bufw.close ();
				The catch (IOException ex) {throw new RuntimeException (); }
			}
		}); Openitem.addactionlistener (new ActionListener () {public void actionperformed (ActionEvent e) {Opendia.setvisi
				BLE (true);
				String Dirpath = Opendia.getdirectory ();
				
				String fileName = Opendia.getfile ();
				if (Dirpath = null | | | fileName = NULL) {return;
				} ta.settext ("");
				
				File = new file (Dirpath, fileName);
					try {bufferedreader bufr = new BufferedReader (new FileReader (file));
					
					String line = null;
					while (line = Bufr.readline ())!= null) {Ta.append (line + "\ r \ n");
				} bufr.close ();
				catch (IOException ex) {throw new RuntimeException ("read failed");
		
		}
			}
		}); Closeitem.addactionlistener (new ActionListener () {@Override public void actionperformed (ActionEvent e) {//	
			TODO auto-generated Method Stub system.exit (0);
		
		}
		}); F.addwindowlistener (New Windowadapter () {public void windowclosing (WindowEvent e) {System.Exit (0);
	}
		});

	public static void Main (string[] args) {//TODO auto-generated method Stub new Mymenutest ();
 }

}

Run Result:

On the Machine testimonials: graphical interface Good magic Ah, learned it to know this fun