Install Java7 on Ubuntu 10.04

Posted on January 19, 2013 by admin

To install Java in Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

  • sudo mkdir -p /usr/local/java

>> For 32-bit users:

  • wget -O jre-32bit.tar.gz
  • wget -O jdk-32bit.tar.gz
  • sudo -s cp -r jre-32bit.tar.gz /usr/local/java
  • sudo -s cp -r jdk-32bit.tar.gz /usr/local/java
  • cd /usr/local/java
  • sudo -s tar xvzf jre-32bit.tar.gz
  • sudo -s tar xvzf jdk-32bit.tar.gz

>> For 64-bit users:

  • wget -O jdk-64bit.tar.gz
  • wget -O jre-64bit.tar.gz
  • 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:

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