Blackberry JAVA DEVELOPMENT ENVIRONMENT Başlangıç Kılavuzu - Sayfa 12

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Getting started guide

Add .java source files to the project for the HelloWorld application

The .java source file name must match the name of the public class or interface in the file. It must also be located

in a folder structure that matches its package name.

For example, if the workspace file is C:\name\ws.jdw and it contains a

must name the project (.java) source file MyClass.java, and store it in C:\name\com\mycompany\MyClass.java.

In the Navigator view, select a BlackBerry project.

2. Right-click the project and select Add File to Project.

3. In the File Name field, type HelloWorld.

4. Click Open.

Import resources into HelloWorld.java

net.rim.device.api.ui

The

for constructing the UI of a BlackBerry device application.

net.rim.device.api.ui.component

The

controls for constructing usable UIs for BlackBerry device application.

net.rim.device.api.ui.container

The

for constructing a usable UI for BlackBerry device application.

net.rim.device.api.system

The

net.rim.device.api.ui

In the Text Editor window and underneath the line that begins with the word package, type the following:

import net.rim.device.api.ui.*;

import net.rim.device.api.ui.component.*;

import net.rim.device.api.ui.container.*;

import net.rim.device.api.system.*;

Provide a UI for a HelloWorld application

Modify the

HelloWorld

public class HelloWorld extends UiApplication

2. Create a constructor for the

public HelloWorld() {

}

Allow the HelloWorld application start sending and receiving events when the

application starts

The

UiApplication

class is the base class for all BlackBerry® device applications that provide a UI.

package provides a BlackBerry® device application with fundamental functionality

package provides a library of prebuilt interface components and

package provides a library of prebuilt interface component mangers

package provides a variety of system-level functionality. See

in the API Reference for more information.

class declaration to extend the

HelloWorld

class.

com.mycompany.MyClass

UiApplication

class.

class, then you