4 Viewing and Editing Project Properties

4.1 Project Properties

To view the project properties, right-click on a project, choose Properties, and select the Java ME category. The Java ME category enables you to select the emulator platform and configuration for the project, and it contains the following subcategories: library, obfuscation, packaging, preprocessor, preverification and signing.

4.2 Platform Selection

An emulator platform simulates the execution of an application on one or more target devices. To view this property page, right-click on a project and choose Properties and select the Java ME category.

Select a configuration from the table. You can edit the configuration and choose the SDK platform and the device that you want to use for this project.

For the emulator platform, be sure to select the 3.2 platform. You might have to use the dropdown menu to ensure the right version is selected.

By default, the devices in the device menu are also suitable for the platform type and emulator platform. The device you select is the default device for this project. It is used whenever you use the Run command. Your device selection influences the Device Configuration and Device Profile options, and the available optional packages.

Add the optional packages you want to include in this project. The selected APIs are automatically added to the project's classpath.

4.3 Editing Application Descriptor Properties

In Eclipse, the application descriptor is an element in the Package Explorer window. Double click on Application Descriptor in the Package Explorer under your project tree and edit the properties on the window that appears. There are different categories of properties on the tabs on the bottom: Overview, MIDlets, Optional, User Defined, Signing, etc.

4.4 Building a Project

When you build a project, the SDK compiles the source files and generates the packaged build output (a JAR file) for your project. You can build the main project and all of its required projects, or build any project individually.

In general you do not need to build the project or compile individual classes to run the project. By default, the SDK automatically compiles classes when you save them. You can use properties to modify the following build tasks:

• Section 4.4.1, "Compiling"

• Section 4.4.2, "Adding Libraries and Resources"

• Section 4.4.4, "Obfuscating"

• Section 4.4.3, "Creating JAR and JAD Files (Packaging)"

• Section 4.4.5, "Signing"

4.5 Running Settings

To view this property page, right-click on a project and choose Properties. In the Properties window, choose Run/Debug Settings. The options shown depend on the platform. See Section 4.5.1, "MIDP Project Run Options."