default-jdk software package provides Standard Java or Java compatible Development Kit, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install default-jdk
default-jdk is installed in your system.
Make ensure the default-jdk package were installed using the commands given below,
$ sudo dpkg-query -l | grep default-jdk *
You will get with default-jdk package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Development |
| Package | default-jdk |
| Version | 1:1.6-43ubuntu2 |
| Description | Standard Java or Java compatible Development Kit |
| Sub Section | devel |