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Introduction to Eclipse What is Eclipse? An Integrated Development Environment Provides many features to ease Java programming 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 http://www.eclipse.org/ http://java.sun.com/javase/downloads/index_jdk5.jsp For help, send email to [email protected] 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 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?