Install JAVA in Ubuntu or debian manually
- Category : Linux Helpline (Easy Guide)
- Posted on : Apr 17, 2019
- Views : 1,533
- By : Ingavar J.
The following steps will help you to install java in ubuntu / debian manually
Download the jdk 7 tar file http://www.oracle.com/technetwork/java/javase/downloads/index.html
mkdir -pv /usr/lib/jvm
cd /usr/lib/jvm
wget -c http://downloads-url-of-jdk/java/jdk-7u10-linux-x64.tar.gz
tar -xzf jdk-7u10-linux-x64.tar.gz
cd /usr/lib/jvm/jdk1.7.0_10
Now set the alternatives path
update-alternatives –install “/usr/bin/java” “java” “/usr/lib/jvm/jdk1.7.0_10/bin/java” 1
update-alternatives –install “/usr/bin/javac” “javac” “/usr/lib/jvm/jdk1.7.0_10/bin/javac” 1
update-alternatives –install “/usr/bin/javaws” “javaws” “/usr/lib/jvm/jdk1.7.0_10/bin/javaws” 1
Now edit the bashrc file and set teh following environment variables
export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_10
export CLASSPATH=.:$JAVA_HOME/lib/
export PATH=$JAVA_HOME/bin:$PATH
Now you can test the java version using the following command,
# javac -version
PS: If you have multiple alternative , please configure it using update-alternatives –config java
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