Install PyCharm and JDK on Ubuntu 12.04

Installing Sun JDK 7 on Ubuntu 12.04:

• Download the sun jdk 7 tar file from here
• Extract the tar file:

$ tar -xvzf jdk-7u4-linux-x64.tar.gz

• Move extracted folder to this location:

$ sudo mv jdk1.7.0_04 /usr/lib/jvm/

• Install new java source in system: 

$ sudo update-alternatives --install \

/usr/bin/javac javac /usr/lib/jvm/jdk1.7.0_04/bin/javac 1 

$ sudo update-alternatives --install \

/usr/bin/java java /usr/lib/jvm/jdk1.7.0_04/bin/java 1 

$ sudo update-alternatives --install \

/usr/bin/javaws javaws /usr/lib/jvm/jdk1.7.0_04/bin/javaws 1

• Choose default java:

$ sudo update-alternatives --config javac 

$ sudo update-alternatives --config java 

$ sudo update-alternatives --config javaws

• java version test:

$ java -version

• Verify the symlinks all point to the new java location:

$ ls -la /etc/alternatives/java*

• Enable Java plugin for Mozilla Firefox (even for Chrome)

#for 64-Bit jdk 

$ sudo ln -s /usr/lib/jvm/jdk1.7.0_04/jre/\

lib/amd64/libnpjp2.so /usr/lib/mozilla/plugins 

#for 32-Bit jdk 

$ sudo ln -s /usr/lib/jvm/jdk1.7.0_04/jre/\

lib/i386/libnpjp2.so /usr/lib/mozilla/plugins

• JAVA_HOME configuration:

Some tools require JAVA_HOME variable. You can set JAVA_HOME in Ubuntu so simple: Edit the file .bashrc under your home directory and add the following lines: (if .bashrc is hidden click in Nautilus Menu View > Show Hidden Files)

export JAVA_HOME=/path/your/jdk 

export PATH=$JAVA_HOME/bin:$PATH

Install pycharm on ubuntu 12.04:

• Download pycharm-2.6.2.tar.gz from here

$ tar -xvzf pycharm-2.6.2.tar.gz 

$ cd /pycharm-2.6.2/bin/ 

$ ./pycharm.sh &