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Java Platform Micro Edition Software Development Kit Version 3.0

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Getting Started

Java ME Platform SDK Features

Using Sample Projects

Running a Project


Sample Project Overview

Configuring the Web Browser and Proxy Settings

Resolving Reference Problems

Running MIDP and CLDC Sample Projects

Running the Demos Sample Project






Add Stock Symbols to the Ticker

Change the Update Interval

Remove a Stock

Stock Tracker

What If?









Running FPDemo

Running Games

Running Network Demo

Socket Demo

Datagram Demo

Running PhotoAlbum

Running UIDemo

Creating and Editing Projects

Viewing and Editing Project Properties

Running Projects in the Emulator

Searching the WURFL Device Database

Finding Files in the Multiple User Environment

Profiling Applications

Monitoring Network Traffic

Lightweight UI Toolkit

Security and MIDlet Signing

BD-J Support

CLDC Emulation on a Windows Mobile Device

Installing CLDC Emulation on a Windows Mobile Emulator

On-device Debugging

Command Line Reference


JSR Support

JSR 75: PDA Optional Packages

JSR 82: Bluetooth and OBEX Support

JSR 135: Mobile Media API Support

JSR 172: Web Services Support

JSR 177: Smart Card Security (SATSA)

JSR 179: Location API Support

JSRs 184, 226, and 239: Graphics Capabilities

JSR 205: Wireless Messaging API (WMA) Support

JSR 211: Content Handler API (CHAPI)

JSR 238: Mobile Internationalization API (MIA)

JSR 229: Payment API Support

JSR 256: Mobile Sensor API Support


Datagram Demo

This demo is similar to Socket Demo. Run two instances of the emulator. One acts as the datagram server, and the other as the datagram client.

  1. In the first emulator, launch Datagram Demo, then select the Server peer. Choose Start. The emulator explains that the demo wants to send and receive data over the network and asks, “Is it OK to use network?“ Choose Yes. Initially, the Datagram Server status is Waiting for connection, and the Send box is empty.

  2. In the second emulator, launch Datagram Demo, select the Client peer, then choose Start. The emulator explains that the demo wants to send and receive data over the network and asks, “Is it OK to use network?“ Choose Yes. The Datagram Client status is: Connected to server. Use the down navigation arrow to highlight the Send box. Type a message in the Send box, then choose the Send soft key. For example, type Hello datagram server.

  3. On the emulator running the Datagram Server, the Status displays: Message received - Hello datagram server. You can use the down arrow to move to the Send box and type a reply to the client.

  4. In the Datagram Client, the status field displays the message received from the server. The Send box contains the last message you sent.