You can use /usr/libexec/java_home -v <version you want> to get the path you need for JAVA_HOME. For instance, to get the path to the 1.7 JDK you can run /usr/libexec/java_home -v 1.7 and it will return the path to the JDK. In your .profile or .bash_profile just add export JAVA_HOME=`/usr/libexec/java_home -v <version>` and you should … Read more
The purpose is to point to where Java is installed. $JAVA_HOME/bin/java should execute the Java runtime.
If you’re doing any sort of development, or building with Maven or Ant, you need to point to the JDK (Java Development Kit) where utilities such as javac (the Java Compiler) reside. Otherwise, you can point to the JRE (Java Runtime Environment). The JDK contains everything the JRE has and more. If you’re just executing … Read more
I think JAVA_HOME is the best you can do. The command-line tools like java and javac will respect that environment variable, you can use /usr/libexec/java_home -v ‘1.7*’ to give you a suitable value to put into JAVA_HOME in order to make command line tools use Java 7. export JAVA_HOME=”`/usr/libexec/java_home -v ‘1.7*’`” But standard double-clickable application … Read more
Put the environment variables into the global /etc/environment file: … export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun … Execute “source /etc/environment” in every shell where you want the variables to be updated: $ source /etc/environment Check that it works: $ echo $JAVA_HOME $ /usr/lib/jvm/java-1.5.0-sun Great, no logout needed. If you want to set JAVA_HOME environment variable in only the terminal, … Read more
I put the line: export JAVA_HOME=/usr/lib/jvm/java-7-oracle in my ~/.bashrc file. /usr/lib/jvm/java7-oracle should be a symbolic link pointing to /usr/lib/jvm/java-7-oracle-[version number here]. The reason it’s a symbolic link is that in case there’s a new version of the JVM, you don’t need to update your .bashrc file, it should automatically point to the new version. If … Read more
find /usr/lib/jvm/java-1.x.x-openjdk vim /etc/profile Prepend sudo if logged in as not-privileged user, ie. sudo vim Press ‘i’ to get in insert mode add: export JAVA_HOME=”path that you found” export PATH=$JAVA_HOME/bin:$PATH logout and login again, reboot, or use source /etc/profile to apply changes immediately in your current shell
WAY-1 : Updated for the shortest and easy way Below command will give you the path, But it will only work if java command is working in other words if java path is configured. readlink -f $(which java) Read more at Where can I find the Java SDK in Linux? WAY-2 (Better than WAY-1) : … Read more
Find JDK Installation Directory First you need to know the installation path for the Java Development Kit. Open the default installation path for the JDK: C:\Program Files\Java There should be a subdirectory like: C:\Program Files\Java\jdk1.8.0_172 Note: one has only to put the path to the jdk without /bin in the end (as suggested on a … Read more