RHEL7 installation jdk and environment configuration tutorials

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1. Upload jdk to the directory and decompress:

Tar-ivh jdk-8u161-linux-x64.tar.gz

2. Open the configuration file profile for environment configuration

Vim / etc/profile

Export JAVA_HOME=/home/java/jdk1.8.0_161

Export PATH=$JAVA_HOME/bin:$PATH

Export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

3. Enter the command to restart the profile file

Source / etc/profile

4. Enter Java and javac for testing

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