A SAMPLE APPLICATION BY USING JAVA.DATATRANSFER PACKAGE MY CLASS ROOM PRACTICE EXAMPLE ON MAR.2002

/*STRING SELECTION THIS CLASS PROVIDES THE FACILITIES TO TRANSFER THE DATA TRANSFERABLE THIS CLASS PROVIDES FACILITIES FOR THE DATA TRANSFER DATA FLAVOR CLASS PROVIDES THE FEATURES OF THE DATA ENCAPSULATION */

NOTE :-   In this program I have used some deprecated methods and one package java.datatransfer it may give u some trouble in the case  the package is not available this an exercise to my class students so i deliberately kept in this some bugs if you read the program and this  link theory u will be able to run this program successfully this program will sharpen u r brain and enrich u r thinking in java  see for theory http://happy.cs.vt.edu/~manuel/courses/cs5774-F08/slides/java/8-Clipboard/Clipboard.pdf  i am framing the  some of practical code over here

import java.awt.*;

import java.awt.event.*;

import java.datatransfer.*;

class w extends WindowAdapter

{

public void windowClosing(WindowEvent we)

{

System.exit(0);

}}

class Cp extends Frame

{

MenuBar mb;

Menu edit;

MenuItem cut,copy,paste;

TextArea ta;

Clipboard cb;

Cp()

{

addWindowListener(new w());

setLayout(null);

mb=new MenuBar();

setMenuBar(mb);

edit =new Menu("edit");

mb.add(edit);

cut=new MenuItem("cut");

copy=new MenuItem("copy");

paste=new MenuItem("paste");

edit.add(cut);

edit.add(copy);

edit.add(paste);

ta=new TextArea(10,20);

ta.setBounds(100,100,500,200);

add(ta);

cb=getToolKit().getSystemClipboard();

cut.addActionListener(new MyCut());

copy.addActionListener(new MyCopy());

paste.addActionListener(new MyPaste());

}

class MyCopy implements ActionListener

{

public void actionPerformed(ActionEvent ae)

{

String s=ta.getSelectedText();

StringSelection ss=new StringSelection(s);

cb.setContents(ss,ss);

}

}

class MyCut implements ActionListener

{

public void actionPerformed(ActionEvent ae)

{

String s=ta.getSelectedText();

stringselection ss=new stringselection(s);

cb.setContents(ss,ss);

ta.repalceRange("",ta.getSelectionStart(),ta.getSelectionEnd());

}}

class Mypaste implements ActionListener

{

public void actionPerformed(ActionEvent ae)

{

Transferable t=cb.getContents(this);

try

{

String s=(String)t.getTransferData(DataFlavor.stringFlavor);

ta.replaceRange(s,ta.getSelectionStart(),getSelectionEnd());

}

catch(Exception e)

{}

}}

//write u r own code to bring completeness to this program study the above theory u will what is lagging in this don't try to execute directly this

cp1.setVisible(true);

cp1.setBounds(0,0,800,600);

}}