Introduction to Eclipse cs112b1 – Lab01 by Rui Shi

General Information TF: Rui Shi Office: MCS 174 Office hours: Mon 3-5pm, Fri 3-5pm For any general questions about the course, please send to

What is Eclipse? An Integrated Development Environment Provides many features to ease Java programming (and others, e.g. C/C++) Editor Debugger Source Control …

Getting Eclipse At the CS labs … It s already installed At home … Download the latest version at: You may need to install Java SDK1.5 or JRE if you haven t from For help, send to the course mailing list

Installing and Running Eclipse Installation is very simple Just unpack the downloaded package Running Eclipse 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 Workspace is where your projects and programs are stored. 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 /home/usrname/course/cs112b1 All code will be saved in this directory Demo

Some important concepts about Eclipse Environment Workbench Perspective Views Editor …

Workbench The term Workbench refers to the desktop development environment The Workbench aims to achieve seamless tool integration and controlled openness by providing a common paradigm for the creation, management, and navigation of workspace resources.

Understanding Perspective Each Workbench window contains one or more perspectives Each perspective provides a set of functionality aimed at accomplishing a specific type of task or works with specific types of resources. For example, the Java perspective combines views that you would commonly use while editing Java source files, while the C/C++ perspective contains the views that you would use for editing C++ files You might need switch perspectives frequently.

Built-in Eclipse Perspectives Resource Arrange your files and projects. Java Develop programs in the Java language. Debug Diagnose and debug problems that occur at runtime. Java Browsing Java Type Hierarchy Plug-in Development CVS Repository Exploring Team Synchronizing

Views Views support editors and provide alternative presentations as well as ways to navigate the information in your Workbench. For example, the Navigator and other navigation views display projects and other resources that you are working with.

Editors Most perspectives in the Workbench are comprised of an editor area and one or more views You can associate different editors with different types of files. Any number of editors can be open at once, but only one can be active at a time.

Creating Java Projects Demo: Creating a project for assignment1 in the workspace

Creating Java Packages 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. course.cs112b1.assignment1 Organizing source files into different packages is a good programming style. Demo: creating a package

Adding Java Classes Class is the basic compilation unit in Java. Demo: Creating the Employee class of assignment1

Import existing files Some files are given and you want to import them to your projects rather than creating them again Demo: Importing other files of assignment1 to the project You can also copy-and-paste files to your project folder Refresh the file view if you don t see them

Running the code 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 Demo: Removing files from the project Check (or not) Build Automatically Window->Preferences Project->Properties … Eclipse provides a very good Help system Help->Help Contents for more information

Questions?