What should JAVA_HOME be set to?

Set JAVA_HOME:

• Right click My Computer and select Properties.
• On the Advanced tab, select Environment Variables, and then edit JAVA_HOME to point to where the JDK software is located, for example, C:\Program Files\Java\jdk1. 6.0_02.

How do I permanently set my Java PATH in Linux?

Steps

1. Change to your home directory. cd $HOME.
2. Open the . bashrc file.
3. Add the following line to the file. Replace the JDK directory with the name of your java installation directory. export PATH=/usr/java//bin:$PATH.
4. Save the file and exit. Use the source command to force Linux to reload the .

What is Java environment variables?

Like properties in the Java platform, environment variables are key/value pairs, where both the key and the value are strings. The conventions for setting and using environment variables vary between operating systems, and also between command line interpreters.

Should JAVA_HOME be JRE or JDK?

JAVA_HOME is used by the launcher for finding the JDK/JRE to use. (JDK is recommended as some tasks require the java tools.)

What happens if JAVA_HOME is not set?

If any program that requires a Java runtime fails to find the JAVA_HOME environment variable upon startup, or if the JAVA_HOME environment variable is misconfigured, it will result in some of the following error messages to be displayed: A Java installation exists but JAVA_HOME has been set incorrectly.

How do I change Java environment variables in Linux?

Procedure

1. Download or save the appropriate JDK version for Linux.
2. Extract the compressed file to the required location.
3. Set JAVA_HOME using the syntax export JAVA_HOME= path to JDK .
4. Set PATH using the syntax export PATH=${PATH}: path to the JDK bin .
5. Verify the settings using the following commands:

What should JAVA_HOME be set to Linux?

In Windows, JAVA_HOME must point to the JDK installation folder (so that JAVA_HOME/bin contains all executables and JAVA_HOME/libs contains all default jar libraries). If I download Sun’s JDK bundle and installs it in Linux, it is the same procedure.