place jdk1.8.0_101 to /opt
modify .bashrc:
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export JAVA_HOME=/opt/jdk1.8.0_101 export JRE_HOME=${JAVA_HOME}/jre export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib export PATH=${JAVA_HOME}/bin:$PATH
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execute:
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source .bashrc sudo update-alternatives --install /usr/bin/java java /opt/jdk1.8.0_101/bin/java 300 sudo update-alternatives --install /usr/bin/javac javac /opt/jdk1.8.0_101/bin/javac 300 sudo update-alternatives --install /usr/bin/jar jar /opt/jdk1.8.0_101/bin/jar 300 sudo update-alternatives --install /usr/bin/javah javah /opt/jdk1.8.0_101/bin/javah 300 sudo update-alternatives --install /usr/bin/javap javap /opt/jdk1.8.0_101/bin/javap 300 sudo update-alternatives --config java
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verify java installation:
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