Core Java| JSP| Servlets| XML| EJB| JEE5| Web Services| J2ME| Glossary| Questions?

 

 

 

 

 

 

 

 

 

 

 

 

 

Search Tutorials

Latest Questions
Comments
 
Creating Volume Bar Using Gauge Class 
 

This example is all about creating a volume bar using Gauge class. We are creating the object of Gauge class that contains the following parameters label, interactive, maxValue and initialValue and it has been set with the form.

 

Creating Volume Bar Using Gauge Class

                         

This example is all about creating a volume bar using Gauge class. We are creating the object of Gauge class that contains the following parameters label, interactive, maxValue and initialValue and it has been set with the form.  We can also set the new volume label, if the interactive  status is true. But if the status is set as  false then we can not change the value of bar label. The following code is used to create the gauge and to display the current status:

 

gauge = new Gauge("Volume", true, 52);
sitem = new StringItem(null, "[value]");
itemStateChanged(gauge);

 

 

The Application is as follows:

 

Source Code of VolumeExample.java

 

 

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

public class VolumeExample extends MIDlet implements ItemStateListener, CommandListener{
  private Form form;
  private Display display;
  private Command exit;
  private Gauge gauge;
  private StringItem sitem;

  public VolumeExample(){
    gauge = new Gauge("Volume", true, 52);
    sitem = new StringItem(null, "[value]");
    itemStateChanged(gauge);
  }

  public void startApp(){
    Form form = new Form("GaugeExample");
    exit = new Command("Exit", Command.EXIT, 0);
    display = Display.getDisplay(this);
    form.append(gauge);
    form.append(sitem);
    form.addCommand(exit);
    form.setCommandListener(this);
    form.setItemStateListener(this);
    display.setCurrent(form);
  }

  public void itemStateChanged(Item item){
    if (item == gauge){
      sitem.setText("Volume Label = " + gauge.getValue());
    }
  }

  public void pauseApp(){}

  public void destroyApp(boolean unconditional){
    notifyDestroyed();
  }

  public void commandAction(Command c, Displayable s){
    String label = c.getLabel();
    if (label.equals("EXIT")){
      destroyApp(false);
    }      
  }
}

Download Source Code

                         

» View all related tutorials
Related Tags: c j2me diff types type if example to rectangle draw exam raw angle e il pe in different m nt

Leave your comment:

Name:

Email:

URL:

Title:

Comments:


Enter Code:

Audio Version
Reload Image
 

Note: Emails will not be visible or used in any way, and are not required. Please keep comments relevant. Any content deemed inappropriate or offensive may be edited and/or deleted.

No HTML code is allowed. Line breaks will be converted automatically. URLs will be auto-linked. Please use BBCode to format your text.

Add This Tutorial To:
  Del.icio.us   Digg   Google   Spurl   Blink   Furl   Simpy   Y! MyWeb 
Training Courses
Tell A Friend
Your Friend Name
Software Solutions
Least Viewed
Most Rated
Recently Viewed
Search Tutorials

 

 
 

Home | JSP | EJB | JDBC | Java Servlets | WAP  | Free JSP Hosting  | Search Engine | News Archive | Jboss 3.0 tutorial | Free Linux CD's | Forum | Blogs

About Us | Advertising On RoseIndia.net  | Site Map

India News

Indian Software Development Company | iPhone Development Company in India | Flex Development Company in India | Java Training Delhi | Java Training at Noida |

Send your comments, Suggestions or Queries regarding this site at roseindia_net@yahoo.com.

Copyright © 2008. All rights reserved.