INSTALL ORACLE JAVA 7 IN UBUNTU 12.10
To install Java in Ubuntu/Linux open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:
- sudo mkdir -p /usr/local/java
For 32-bit users:
For 64-bit users:
- wget -O jdk-64bit.tar.gz http://goo.gl/MSzBj
- wget -O jre-64bit.tar.gz http://goo.gl/yZgjI
- sudo -s cp -r jre-64bit.tar.gz /usr/local/java
- sudo -s cp -r jdk-64bit.tar.gz /usr/local/java
- cd /usr/local/java
- sudo -s chmod a+x jre-64bit.tar.gz
- sudo -s chmod a+x jdk-64bit.tar.gz
- sudo -s tar xvzf jre-64bit.tar.gz
- sudo -s tar xvzf jdk-64bit.tar.gz
Now you need to enter these command (both 32-bit and 64-bit users):
- sudo nano /etc/profile
Add the following lines at the end of file:
JAVA_HOME=/usr/local/java/jdk* PATH=$PATH:$HOME/bin:$JAVA_HOME/bin JRE_HOME=/usr/local/java/jre* PATH=$PATH:$HOME/bin:$JRE_HOME/bin export JAVA_HOME export JRE_HOME export PATH
Copy above lines and to paste in terminal (Press Ctrl+Shift+V) and to save file using nano (Press Ctrl+O) then (Press Ctrl+X) to exit from file.
Now enter following commands one by one in terminal:
- sudo update-alternatives –install “/usr/bin/java” “java” “/usr/local/java/jre1.7.0_12/bin/java” 1
- sudo update-alternatives –install “/usr/bin/javac” “javac” “/usr/local/java/jdk1.7.0_12/bin/javac” 1
- sudo update-alternatives –install “/usr/bin/javaws” “javaws” “/usr/local/java/jre1.7.0_12/bin/javaws” 1
- sudo update-alternatives –set java /usr/local/java/jre1.7.0_12/bin/java
- sudo update-alternatives –set javac /usr/local/java/jdk1.7.0_12/bin/javac
- sudo update-alternatives –set javaws /usr/local/java/jre1.7.0_12/bin/javaws
- . /etc/profile
Check installed java version:
- java -version
That’s it, Enjoy!!!
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