cd /usr/local

tar -xzvf jdk-8.0.16_linux-x64_bin.tar.gz

sudo vim /etc/profile

export JAVA_HOME=/usr/local/jdk-8.0.16
export JRE_HOME=$JAVA_HOME/jre
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

source /etc/profile

java -version