Transcript EclipseIntroduction - cse141introductiontoprogramming

Introduction to Eclipse
What is Eclipse?
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An Integrated Development
Environment
Provides many features to ease Java
programming
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Editor
Debugger
Source Control
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Getting Eclipse
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At the CS labs…
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It’s already installed
At home…
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Download the latest version at:
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You may need to install Java SDK1.5 or JRE if
you haven’t from
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http://www.eclipse.org/
http://java.sun.com/javase/downloads/index_jdk5.jsp
For help, send email to
[email protected]
Installing and Running Eclipse
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Installation is very simple
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Just unpack the downloaded package
Running Eclipse
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Then click eclipse.exe (under Windows)
Run eclipse (under Linux)
Eclipse will start running if all the prerequisites are
met
Demo: Run Eclipse
Setting up your Workspace
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Workspace is where your projects and
programs are stored.
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Usually some directory in the file system
The workspace is set when Eclipse starts
In this course, for instance, we may set the
work space to
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/home/usrname/course/cs112b1
All code will be saved in this directory
Demo
Creating Java Projects
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Demo: Creating a project for
assignment1 in the workspace
Creating Java Packages
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A Package in Java is a group of classes which
are often closely or logically related in some
way
Package corresponds to the directory
hierarchy in the file system.
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course.cs112b1.assignment1
Organizing source files into different
packages is a good programming style.
Demo: creating a package
Adding Java Classes
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Class is the basic compilation unit in
Java.
Demo: Creating the Employee class of
assignment1
Import existing files
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Some files are given and you want to import
them to your projects rather than creating
them again
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Demo: Importing other files of assignment1
to the project
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You can also copy-and-paste files to your
project folder
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Refresh the file view if you don’t see them
Running the code
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Currently, no implementation is provided in
the given files. You are expected to fill the
implementation details.
We need a class which has a main() method
as the entrance for execution
Demo: Adding the main() method in
TestPayroll.java and run the program
Other issues
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Demo:
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Removing files from the project
Check (or not) “Build Automatically”
Window->Preferences
Project->Properties
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Eclipse provides a very good Help system
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“Help->Help Contents” for more information
Questions?