Download Tuesday January 21

Integrated
Development
Environments
Today We Will:
• Discuss what IDE’s are used for
• Go over the Eclipse IDE:
– What is Eclipse?
– How to install and set it up
– Basic functionality of the application
What is an IDE?
• IDE stands for integrated development
environment.
• They are tools used by system developers
(including software engineers) to assist them in
the various phases of system development.
Benefits of Using an IDE
• IDE’s have many features that make system development
easier like:
– Editors with:
•
•
•
•
built-in debuggers
automatic error detection
varying views of the code
automatic code completion
– Built-in documentation
– Built-in connections to external tools:
• SCR tools
• testing tools
• deployment tools.
What is Eclipse?
• The developers of Eclipse describe the application this
way:
“Eclipse is an open platform for tool integration built by an
open community of tool providers. Operating under a open
source paradigm, with a common public license that
provides royalty free source code and world wide
redistribution rights, the eclipse platform provides tool
developers with ultimate flexibility and control over their
software technology.”
• What does this mean?
What is Eclipse?
• Eclipse is an open-source tool which means that
developers have access to the source code for the
application.
• This allows these developers to build plug-in tools that
work seamlessly with this platform.
• For example, a company called Omondo built a plug-in
tool for Eclipse that does UML modeling. We will use this
tool later.
• Software engineers use the IDE and many of its built-in
tools. Eclipse is an excellent IDE and is free to the
developer.
Who’s Developing
These Tools for Eclipse?
• All of these industry leaders have commited to building
Eclipse Platform compatible products:
– Borland, IBM, MERANT, QNX Software Systems, Rational
Software, Red Hat, SuSE, TogetherSoft, Webgain2, Serena, Sybase
and Fujitsu
• In recent months more than 35 new offerings powered by
eclipse have been released and more than 175 tool vendors
are delivering tools for the eclipse platform to community
participants from over 100 countries.
Installing the Eclipse Application
• Download and install
– Go to http://www.eclipse.org/downloads/index.php.
– Download the latest release (currently that is 2.0.2).
• Choose the one for your operating system.
– Unzip the download and extract to a target directory.
– To run the application, click on eclipse.exe.
Installing the Eclipse Application
• Set up the correct JRE:
– Note: you must have a JVM installed on your machine.
You should have JDK 1.4.1.
– Go to Window-Preferences.
– Click on Java in the left-hand window.
– Click on Installed JRE’s.
– Click Add and browse for the jre
• e.g. C:\Program Files\Java\j2re1.4.1_01
Installing the Eclipse Application
• Set up a project:
– To work with Java in Eclipse, you first need to set up a
project.
• Go to file-new Project.
• Click Java in the left-hand window and click Java Project in
the right-hand window.
• Then click Next.
• Type in a project name and click finish. Keep the use default
box checked.
Installing the Eclipse Application
• Point to necessary external jar’s.
–
–
–
–
Go to Window-Preferences.
Click on Java in the left-hand window.
Click on Classpath Variables.
Click New and browse for the jar.
Basic Functionality
• Using the editor to write Java programs
–
–
–
–
–
–
–
–
–
Click on your new project.
Go to file-new-class.
Type in a class name and fill in the necessary parameters.
In the editor window, type in the Java code.
To compile it go to file-save. Saving the code automatically causes
it to compile.
Fix all errors.
To run the application, go to Run-Run (or click menu item).
Make sure Java application is highlighted.
Click New and hit Run.
• You will see the output in the console window.