An Introduction to CodeWarrior

Compiled by Ray Ortigas

The following is an introduction to using CodeWarrior Pro 5 on CDF-PC. It covers the basic features you need to know in order to create and use a CodeWarrior project:

• Creating a New Project
• Removing and Adding Existing Files
• Adding a New File
• Compiling and Running the Application

The example here uses the source file Student.java and Section.java. Note that the code is used purely to introduce CodeWarrior, and is not commented.

Creating a New Project

From the menu, choose File > New. A dialog will appear. Select the Project tabbed pane if it isn't already selected.

In the left side of the pane, select Java Stationery. This allows you to use CodeWarrior's project stationery, templates from which you can create a project.

You must also specify where you want to create the project. Click the Set... button to the right of the Location field. This will bring up a file dialog. Now,

• From the Save in drop-down, select the directory in which you wish to create your new project. In this example, this directory is java on our H drive.
• In the File name field, type Student.
• Mark the Create folder checkbox, if it isn't already marked.

Then, click Save. The directory H:\java\Student\ will be created; this is your project directory.

When you're finished, the dialog should look like this:

Now click OK. The following dialog will appear, asking you which type of stationery you wish to use:

Since you are working on a Java application, you should select the Java Application stationery. Click OK to start creating the project.

The following window should appear in the workspace:

This is your project window, which shows the contents of your project. Currently, your project contains a couple of groups (indicated by the folder icons) which have been automatically generated:

• Sources, which contains the Java source files that you create. When the project is first generated, CodeWarrior supplies a file called TrivialApplication.java. Eventually, you'll be adding more files to this group.
• Classes, which contains references to other Java libraries. As you can see, there is currently only a reference to rt.jar, which contains the Java API classes. This library is all you need to develop conventional Java applications.

Removing and Adding Existing Files

You won't need TrivialApplication.java, so you can remove that file from the project. Right-click on the file name and select Delete from the menu that appears. When CodeWarrior asks you if you want to proceed, press OK.

You will need to add the source files Student.java and Section.java to your project. To do this,

1. Copy these files to your project directory (H:\java\Student\ in this example).
2. Select the Sources group if it hasn't already been selected.
3. From the menu, select Project > Add Files.

You should see the following dialog:

Select Student.java and press Add. Follow the same procedure to add Section.java. The two files should now appear under the Sources group in the project window.

Adding a New File

Next, you will add some source code of your own to the project. Create a new file by selecting File > New Text File from the menu. A new window titled untitled should appear. In it, type the following code:

public class Driver {
	public static void main( String[] args ) {
		Section sect = new Section(30);
		
		sect.addStudent( new Student( "Kermit", 3 ) );
		sect.addStudent( new Student( "Big Bird", 12 ) );
		
		Student s = sect.findStudent(3);
		System.out.println( s.getName() );
	}
}

Now, select Project > Add Window from the menu. A new dialog will appear asking you what to save the document as. In the File name field, type Driver.java and click Save. The file should now appear under the Sources group in the project window.

Compiling and Running the Application

You are now ready to compile. In the project window, click the Make button .

If you don't get any error messages while compiling, you can run the application. However, before you do this, you must specify the class to execute. Click the Java Application Settings button to bring up the dialog for the project settings. In the left pane of the dialog, choose Target > Java Target. In the right pane, you'll see that the value of the Main field, which specifies the class to execute, is currently TrivialApplication (the default). Change it to Driver. When you're finished, the dialog should look like this:

Click Save, and close the dialog.

Now you can run your program by clicking the Run button . A DOS window should appear:

You're done! Welcome to CodeWarrior.