How install java 8 on centos 8

Step 1 :update centos
#yum -y update

Step 2: install openjdk
#yum install java-1.8.0-openjdk


Step 3 :open file and add
#vim .bash_profile

--lines for add 

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-1.el7_6.x86_64/jre/bin/java

Step 4: update file
#source .bash_profile

Step 5:test 
#echo $JAVA_HOME