Since Java is an optional package on the latest version of OS X, starting from OSX 10.7 (Lion), you need to either install Oracle JDK or choose this optional package. In order to use Java from the command line, you also need to define JAVA_HOME or JRE_HOME, many Java-based programs and tools use these environment variables to access Java e.g. In order to run Java, two things are most important, PATH and CLASSPATH. Mac's UNIX-like feature is added advantage because most of the real-world Java servers run on UNIX-based systems e.g. If you have set JAVA_HOME in UNIX then it's exactly similar to that.Īpple's Mac OS X is the second most widely used operating system after Windows and no surprise that many Java programmers use Macbook Pro for Java development. This will append export 'JAVA_HOME=\$(/usr/libexec/java_home -v 1.7)' into your bash_profile file. You can set JAVA_HOME in Mac OS X 10,10 or Yosemite by adding the following command in your ~/.bash_profile file, as shown below:Įxport JAVA_HOME= `/usr/libexec/java_home` (remember backticks)Įcho export 'JAVA_HOME= \$(/usr/libexec/java_home -v 1.7)' > ~/.bash_profile
