CS115

1
CS115

• HOW TO INSTALL THE JAVA DEVELOPMENT KIT (JDK)
• By George Koutsogiannakis

2
Download the JDK

• Go to the web site
• http//www.oracle.com/technetwork/java/javase/down
  loads/index.html or follow the links provide in
  the courses web site.
• Click on the first icon JAVA PLATFORM JDK 7
• Accept the agreement for the download by clicking
  at the top of the table the accept agreement
  button.
• Next choose your Operating System in your laptop
  (Windows for example). You probably want to click
  on the last choice (bottom link- windows 64) if
  you have windows or MAC environments. Click on
  that link.
• Save the downloaded file in a known folder in
  your laptop.
• After the download is complete, go to the folder
  where the file wa sdownloaded and click on it.
• The installation starts and it would take few
  minutes. YOU ARE NOT DONE AFTER THE INSTALLATION
  IS COMPLETE.

3
Set the PATH Variable

• Using windows explorer (for window systems), go
  to Program Files-gt Java-gtJdk1.7-gtbin. From the
  top of your windows explorer window copy the path
  to the bin folder by right clicking the mouse and
  choosing copy. The path should look something
  almost like this (it depends on your system)
• C\Program Files\Java\jdk1.7.0\bin
• Next you need to set an operating system variable
  named PATH so that the command to start the java
  compiler or interpreter can be recognized from
  anywhere in your directory structure (any
  folder).
• Open Control Panel and chooseSystem
• Click on the Adavnced System Settings link.
• In the pop up window click on environment
  variables and choose Advanced.
• At the top table you will see a variable named
  PATH.

4
Set the PATH Variable

• Click the Edit button.
• In the edit text field place a semicolon at the
  end () of any existing paths (if there is not
  one there already).
• PASTE the path you copied from your laptop after
  the semicolon.
• Press O.K. and close all windows opened.
• Restart your computer.
• When the computer is up and running again
• Open a DOS window.
• Type the command to start the compiler without
  giving it a program name i.e.
• gtjavac

5
Set the PATH Variable

• If the installation and the PATH setting were
  done correctly the compiler will give you an
  error message with an indication of the proper
  commands to use.
• If the PATH was done incorrectly then a message
  will appear like
• Command not recognized
• In that case you will have to repeat the entire
  process of setting the PATH.
• SEE ME IF YOU HAVE ANY QUESTIONS OR IF YOU FEEL
  MORE COMFORTABLE TO DO IT IN MY PRESENCE.