This is the most important class, here

Here the whiteboard frame and other related frames are attached.

http://pastebin.com/8bHxcbkZ

p5.add("West",new Label(" TextBox"));

p4.add("West",new Label(" ChatHere:"));

This code is used to put the Chat button and Text boxes.

There have 1)ToolBox, 2) whiteboard 3) Text 4)Text Box 5)ChatHere 6)Undo button 7)upload 8)Send button

ToolBox- This is contained with Tools that help to draw the figure.

Whiteboard- The place where we draw the figure

Text- when The "Text" is used, the contain of this field is drawn into the whiteboard.

TextBox- The Chat text will be displayed into this field.

ChatHere- This contain of the field will be sent as a chat text.

Undo button- if any1 wants to undo the picture, it will help

Upload- when this button is clicked a new File selection box is opened where the user can choose the appropriate file which is transfer to the other users.

1. 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   int answer = myApp.fc.showOpenDialog(this);
   if (answer == JFileChooser.APPROVE_OPTION)
   
   
   
   
   File file = myApp.fc.getSelectedFile();

These line help me to create the file chooser.

The Action of Upload button is written in below.

http://pastebin.com/shsgUeRC

file.getAbsolutePath()

It is used to Get the absolute path of a file.The following Link helps me create the file chooser.!

http://download.oracle.com/javase/tutorial/uiswing/components/filechooser.html