Shell/Bash: ubuntu change default java path Example

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Shell/Bash Example: This is the "ubuntu change default java path" Example. compiled from many sources on the internet by SimpleTutorials.org

how to set java_home in ubuntu 

#Update repo
sudo apt update

# Install java 8 from ubuntu repo
sudo apt install openjdk-8-jdk -y

#Set JAVA_HOME Path
ls /usr/lib/jvm/java-8-openjdk-amd64/
 export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
 echo $JAVA_HOME
 
 #Add JAVA bin directory to the PATH variable
 export PATH=$PATH:$JAVA_HOME/bin
 echo $PATH
 java -version

ubuntu change default java path 

sudo update-alternatives --config java


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