Installing

Now that you know some features of IntelliJ, we need to install it. On IntelliJ's website http://www.jetbrains.com/idea/, you will find two editions of IntelliJ: Community and Ultimate.

As you've imagined, IntelliJ IDEA Community Edition is a free version of the IDE, but, unfortunately, it has lots of limitations. For example, in the Community version you won't have UML and database tools, nor the frameworks' ease for Spring, JPA, and so on, neither will you have support for languages like JavaScript, CSS, and others. You can see the differences between the versions in the following table; notice that all the things the Community Edition supports are also supported by the Ultimate Edition.

Community Edition

Ultimate Edition

Features

Android support

Build tools

Unit testing

Issue tracking integration

Local history

Context management

Eclipse project interoperability

Swing GUI designer

Code spell checker

OSGI

Database tools

UML designer

Code coverage

Dependency structure matrix

Maven dependency diagram

Structural search and replace

Code duplicates detection

Frameworks and technologies

 

Spring Framework

Play Framework

Java EE 6

Google Web Toolkit

Java Persistence API, Hibernate

Struts

Adobe Flex, AIR

Grails

Griffon

Sass, LESS

Rails, RubyMotion

Django

Node.js

Cucumber for Java Groovy

AspectJ

JBoss Seam

Tapestry

Application server

 

Tomcat

TomEE

Glassfish

JBoss

WebLogic

WebSphere

Geronimo

Resin

Jetty

Virgo

Version Control

Git, GitHub

Subversion

Mercurial

CVS

Team Foundation Server

ClearCase

Perforce

Visual SourceSafe

For more details about the features supported by each version, go to http://www.jetbrains.com/idea/features/editions_comparison_matrix.html?IU.

In this book, we will work only with the Ultimate Version 12.1.x. Don't worry, you can download an evaluation version and use it for 30 days. You can run IntelliJ on three different operating systems: Microsoft Windows, GNU Linux, and Apple Mac. Independent of the OS, you will need the following configuration to run IntelliJ:

  • 1 GB RAM minimum, 2 GB RAM recommended
  • 300 MB hard disk space plus at least 1 GB for caches
  • 1024 x 768 minimum screen resolution
  • JDK 6 or higher

You can run it on the following operating systems:

  • Microsoft Windows 8/7/Vista/2003/XP (including 64-bit)
  • Mac OS X 10.5 or higher, up to 10.8 (Mountain Lion)
  • GNU/Linux with GNOME or KDE desktop

The installation of IntelliJ is so simple that it can be done in the following way:

On Windows, the steps are as follows:

  1. Run the downloaded file.
  2. Follow the steps in the wizard.

On Mac, the steps are as follows:

  1. Mount the downloaded .dmg file as another disk.
  2. Copy IntelliJ IDEA to your Applications folder.

On Linux, the steps are as follows:

  1. Unpack the .tar.gz file.
  2. Run idea.sh from the bin subdirectory.
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