Integrated Development Environments (IDEs) CS 21a: Introduction to Computing I Department of Information Systems and Computer Science Ateneo de Manila University

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 2 Overview What is an IDE? Why use an IDE? Familiarization with different IDEs JCreator BlueJ

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 3 What is an IDE? “Integrated Development Environment” source code editor, a compiler and/or interpreter, build-automation tools, and (usually) a debugger Allows you to create, edit, compile and run programs written in a particular language, e.g. Java Some IDEs can support more than one language

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 4 What is an IDE? Some have other features that aid in developing better programs: Debugging Test cases Code formatting (colored keywords, etc.) Etc.

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 5 Why use an IDE? Easier to code because of colored text Makes it easier to develop programs, so you can focus more on the coding Contains features to make debugging and writing programs easier

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 6 Different IDEs for Java JCreator BlueJ Eclipse Visual Café Java NetBeans Visual Studio …and many more! These are what we will use this semester.

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 7

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 8 JCreator A small, lightweight IDE developed by the Xinox Software. Two licenses available: Lite edition - Freeware (limited features) Pro edition - Shareware (requires payment, but with full features) Download from Will be introduced in the middle of the semester

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 9 BlueJ

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 10 BlueJ Another IDE, but written in Java First developed by University of Kent Download from Ideal for first-time programmers Features include the debugger, test runs, etc.

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 11 BlueJ Allows you to start programming right away, focusing on object fields and methods, and less on syntax Allows you to see objects in action shows you how classes are related through boxes and lines

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 12 Using BlueJ for the first time You may have to specify where your Java executable is located Usually at C:\Program Files\Java\jdk1.6.0_03\bin\java.exe Then, create/open a BlueJ project Note: Non-BlueJ folders containing Java files will have to be converted to a BlueJ project.

Copyright 2008, by the authors of these slides, and Ateneo de Manila University. All rights reserved. L2: IDEs Slide 13 Familiarization with BlueJ Again, create, compile and execute a HelloWorld application Make sure there are multiple println statements in the Java class so that you can try out the debugger later Execute by right-clicking on the Java class icon and executing main Try out the debugger Set a breakpoint and execute the Java class