Source Code : An example MIDlet with simple Alert UI component containing an Image.

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An example MIDlet with simple Alert UI component containing an Image.

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

/**
 * An example MIDlet with simple "Alert" UI component containing an Image.
 */
public class AlertImage extends MIDlet
{

    private Display display;    // The display for this MIDlet
   private Alert myAlert = null;

    public AlertImage() {
    }

    /**
     * Call showAlert
     */
    public void startApp() {

       display = Display.getDisplay(this);
     TextBox t = new TextBox("Hello MIDlet", "Hello J2MECamp!", 256, 0);
     display.setCurrent(t);
     System.out.println( "Gonna create Alert.." );
     createAlert();
   }



   /**
   * Puts up an Alert with an Image
   */
   private void createAlert() 
    {
     myAlert = new Alert("MIDlet Alert");
     String[] alertString = { " Alert String" };
     myAlert.setTimeout(Alert.FOREVER);
   
       // Add an image to Alert
       if (display.numColors() > 2) 
       {
          String icon = (display.isColor()) ?"/JavaPowered-8.png" : "/JavaPowered-2.png";
           try
           {
              Image image = Image.createImage( icon );
              if (image != null)
              {
                  myAlert.setImage(image);
                  System.out.println( "Image created and added to alert.. " );
              }
              else
              {
                 System.out.println( "No Image created... " );
              }
              // Add string to Alert
              for ( int i = 0; i < alertString.length; i++ ) {
                 myAlert.setString( alertString[i] );
              }
              
              if ( myAlert != null ) {
                display.setCurrent( myAlert );
              }
           }
           catch( Exception e )
           {
              System.out.println( "Exception in CreateImage() " );
           }
     }
    }
     

    /**
     * Pause is a no-op since there are no background activities or
     * record stores that need to be closed.
     */
    public void pauseApp() {
    }

    /**
     * Destroy must cleanup everything not handled by the garbage collector.
     * In this case there is nothing to cleanup.
     */
    public void destroyApp(boolean unconditional) {
    }

}



           
       

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