CAPTCHA-in-Java

Implementation of CAPTCHA in Java using Java Applet

CAPTCHA (an acronym for Completely Automated Public Turing test to tell Computers and Human Apart") is a type of challenge-response test used in computing to determine whether or not the user is human. For more information click here.

#INSTRUCTIONS To run the program in Windows:

1. Save above program to any file with extension 'java', eg-"Captcha.java" on any directory.
   
2. Open Command Prompt: Start->Run->cmd
   
3. Go to the directory where you have stored the program.
   
4. Type "javac your_file_name.java", in this case its "javac Captcha.java"
   
5. Type "appletviewer your_file_name.java", in this case its "appletviewer Captcha.java"
   

You would see your applet.
To run the program in Unix -based Operating System (Linux, Fedora) you have to open Terminal and follow the above steps.