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How to Set Java Home

Method 1 of 2:

For Windows

  1. How to Set Java Home Picture 1
    Assuming that the path for the Java Development Kit (JDK) during installation is not changed, it will be in a directory under C:Program FilesJava. This path will have the JDK, let's assume it has jdk1.6.0_06. So the install path is C:Program FilesJavajdk1.6.0_06.
  2. How to Set Java Home Picture 2
    Setting JAVA_HOME using "My Computer":
    1. Right click on the My Computer icon on your desktop and select properties
    2. Click the Advanced Tab
    3. Click the Environment Variables button
    4. Under System Variable, click New
    5. Enter the variable name as JAVA_HOME
    6. Enter the variable value as the install path "C:Program FilesJavajdk1.6.0_06"
    7. Click OK
    8. Click Apply Changes
    9. Restart the computer to make sure the changes are reflected.
  3. How to Set Java Home Picture 3
    Setting JAVA_HOME using command prompt
    1. Open command prompt
    2. Type the following in the command prompt
      set JAVA_HOME = C:Program FilesJavajdk1.6.0_06
      and press enter
      The JAVA_HOME is set.
Method 2 of 2:

For Linux

  1. How to Set Java Home Picture 4
    To set the JAVA_HOME we use .bash_profile which is a start-up script. This particular file is used for commands which runs when the normal user logs in. The steps to set JAVA_HOME are:
    1. Login to your account and open .bash_profile file
      $ vi ~/.bash_profile
    2. If your path is set to /usr/java/jdk1.6.0_06/, set JAVA_HOME as follows:
      export JAVA_HOME=/usr/java/jdk1.6.0_06/
    3. Save and close the file. Logout and login back to see new changes, or type source ~/.bashrc
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