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A MIDlet with Hello text and an Exit command E-mail
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This midlet shows a "Hello" text and adds an Exit button.


Image

/*
 *
 * Copyright (c) 2000 Sun Microsystems, Inc. All Rights Reserved.
 *
 * This software is the confidential and proprietary information of Sun
 * Microsystems, Inc. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with Sun.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
 * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
 * THIS SOFTWARE OR ITS DERIVATIVES.
 */

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

/**
 * An example MIDlet with simple "Hello" text and an Exit command.
 * Refer to the startApp, pauseApp, and destroyApp
 * methods so see how each handles the requested transition.
 */
public class HelloCommandMIDlet extends MIDlet implements CommandListener {

  private Command exitCommand; // The exit command
  private Command okCommand; // The exit command
  private Command cancelCommand; // The exit command
  private Command nextCommand; // The exit command
  private Command backCommand; // The exit command
    private Display display;  // The display for this MIDlet

    public HelloCommandMIDlet() {
        display = Display.getDisplay(this);
       exitCommand = new Command("Exit", Command.EXIT, 2);
    }

    /**
     * Start up the Hello MIDlet by creating the TextBox and associating
     * the exit command and listener.
     */
    public void startApp() {
        TextBox t = new TextBox("Hello""Hello World!"2560);

        t.addCommand(exitCommand);
        t.setCommandListener(this);

        display.setCurrent(t);
    }

    /**
     * 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) {
    }

    /*
     * Respond to commands, including exit
     * On the exit command, cleanup and notify that the MIDlet has been destroyed.
     */
    public void commandAction(Command c, Displayable s) {
  if (c == exitCommand) {
      destroyApp(false);
      notifyDestroyed();
  
    }

}

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