Java_installation

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  • Use Homebrew to install: 

    // install the latest version
$ brew cask install java
// for the certain version e.g. java8
$ brew cask install java8

  • Set the environment variable:

    1. check the Installation directory in Finder. e.g. /Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home
    2. vim ~./zshrc 
      export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home
export CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar
export PATH=$JAVA_HOME/bin:$PATH:
    3. source ~./zshrc