javacc software package provides A parser generator for use with Java, 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 javacc
javacc is installed in your system.
Make ensure the javacc package were installed using the commands given below,
$ sudo dpkg-query -l | grep javacc *
You will get with javacc package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Development |
| Package | javacc |
| Version | 5.0-4 |
| Description | A parser generator for use with Java |
| Sub Section | devel |