Install JDK on CentOS using Terminal

Install JDK on CentOS using Terminal


To install JDK on CentOS , we need to follow the following steps:

1. Verify the existing java version
     
       command:
        java  -version
     
       response:
       java-1.6.0-openjdk

2. Remove OpenJDK if you find.
   
      command:
      yum remove java-1.6.0-openjdk

3. Then donwload the SDK from oracle by visiting the following site
     http://www.oracle.com/technetwork/java/javase/downloads/jdk9-downloads-3848520.html

4. Go to the downloaded path , and execute the command:

    command
    sudo rpm -ivh jdk-8u25-linux-x64.rpm

5. Check java version now
 
    command
     java -version

     response:
     jdk1.8.0.151

6.  Create JAVA_HOME and add it into the PATH

    command
    export JAVA_HOME =/ust/java/jdk1.8.0.151
    export PATH= $PATH:$JAVA_HOME

7. Verify the Path

   command
   echo $JAVA_HOME
   echo $PATH