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rpm -qa | grep java

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mkdir /usr/local/java
cd /usr/local/java
wget https://repo.huaweicloud.com/java/jdk/8u202-b08/jdk-8u202-linux-x64.tar.gz
tar -zxvf jdk-8u202-linux-x64.tar.gz

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vi /etc/profile

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export JAVA_HOME=/usr/local/java/jdk1.8.0_202
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin

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source /etc/profile

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java -version