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# Extract jre-8u181-linux-x64.tar.gz to /usr/local - you end up the the java binary in the path: /usr/local/jre1.8.0_181/bin# Extract jre-8u181-linux-x64.tar.gz to /usr/local (''or what is appropriate for your distribution, see below'') - you end up with the java binary in the path: /usr/local/jre1.8.0_181/binLinux Mint 19.2 - Extract jre-8u181-linux-x64.tar.gz to /usr/lib/jvm - you end up with the java binary in the path: /usr/lib/jvm/jre1.8.0_181/bin sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jre1.8.0_181/bin/java" 8