Kamis, 14 April 2011

Hello World Tutorial Creating BlackBerry Applications

create a new BlackBerry application. To shorten the time you read, I will go straight into the tutorial without further ado and spam links anymore. First, open Eclipse and go to the Workbench, and then click the [File]> [New]> [Project ...] New BlackBerry Project Create a New Project In the window [New Project] will appear, select the type of project [BlackBerry]> [BlackBerry Project]. Click [Next]. Select BlackBerry Project Name the project that will be created. In this tutorial, name the project 'HelloWorldApplication'. Click [Finish].
Give the name 'HelloWorldApplication' In the [Package Explorer] in the left part of Eclipse, open the project folder you created. Then right-click the [src] and select [New]> [Package] Create a New Java Package In the window [New Java Package] comes out, name the package that created. Give In the Name of Package If you've made a package, there will be a new folder under the folder [src]. Package folder is created. Now, create a new class. Right click on the package, then select [New]> [Class]. Create a New Class At the exit window, enter the name of the class that you created. Remember, the class name must be in CamelCase. ** Give the name 'HelloWorldApplication'
After creating the class, now entering its program code.
package hello;
 
import net.rim.device.api.ui.Field; import net.rim.device.api.ui.UiApplication; import net.rim.device.api.ui.component.LabelField; import net.rim.device.api.ui.container.MainScreen;
 
/ **
 
* Application class.
 
* / public class extends HelloWorldApplication UiApplication {
   
/ / Function that will be called the first time that the application is started.
   
/ / Must exist in one application, the maximum 1, minimum 1.
   
public static void main (String [] args) {
      
/ / Create instance of the application and enter the Event Thread
      
HelloWorldApplication HelloWorldApplication application = new ();
      
application.enterEventDispatcher ();
   
}
 
   
public HelloWorldApplication ()
   
{
      
/ / Create a new instance of the screen and displayed to the screen.
      
HelloScreen HelloScreen screen = new ();
      
pushScreen (screen);
   
}
 
   
/ / Screen class
   
private class extends Mainscreen HelloScreen
   
{
      
public HelloScreen ()
      
{
         
/ / Specify the title screen
         
setTitle (new LabelField ("App", Field.FIELD_HCENTER));
         
/ / Add a label to display hello world
         
add (new LabelField ("Hello World !"));
      
}
   
} }
When finished making the program code, it is time to run the BlackBerry application.

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