Detailed explanation of installing Java and configuring environment variables on MAC system

This article mainly introduces the relevant information on installing java and configuring environment variables on MAC system. Friends in need can refer to

MAC Configuring java environment variables

1. List all Java version information

/usr/libexec/java_home -V

2. Modify the .bash_profile file

cd ~

touch .bash_profile

vi .bash_profile

3. Configure the JDK environment variable content and enter wq to save

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home #jdk安装路径  
export PATH=$JAVA_HOME/bin:$PATH 
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

4.UpdateConfiguration file

source .bash_profile

5. Check the environment variable JDK version

java -version

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