How do you program a mobile phone's J2ME for seding SMS messages?

Answer 1

this is the code to send sms using J2ME programing language.

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/*

* @(#)SMSSend.java 1.8 04/03/22

*

* Copyright (c) 1999-2004 Sun Microsystems, Inc. All rights reserved.

* PROPRIETARY/CONFIDENTIAL

* Use is subject to license terms

*/

package example.sms;

import javax.microedition.midlet.*;

import javax.microedition.io.*;

import javax.microedition.lcdui.*;

import javax.wireless.messaging.*;

import java.io.IOException;

/**

* An example MIDlet to send text via an SMS MessageConnection

*/

public class SMSSend extends MIDlet

implements CommandListener {

/** user interface command for indicating Exit request. */

Command exitCommand = new Command("Exit", Command.EXIT, 2);

/** user interface command for proceeding to the next screen */

Command okCommand = new Command("OK", Command.OK, 1);

/** current display. */

Display display;

/** The port on which we send SMS messages */

String smsPort;

/** Area where the user enters the phone number to send the message to */

TextBox destinationAddressBox;

/** Error message displayed when an invalid phone number is entered */

Alert errorMessageAlert;

/** Alert that is displayed when a message is being sent */

Alert sendingMessageAlert;

/** Prompts for and sends the text message */

SMSSender sender;

/** The last visible screen when we paused */

Displayable resumeScreen = null;

/**

* Initialize the MIDlet with the current display object and

* graphical components.

*/

public SMSSend() {

smsPort = getAppProperty("SMS-Port");

display = Display.getDisplay(this);

destinationAddressBox = new TextBox("Destination Address?",

null, 256, TextField.PHONENUMBER);

destinationAddressBox.addCommand(exitCommand);

destinationAddressBox.addCommand(okCommand);

destinationAddressBox.setCommandListener(this);

errorMessageAlert = new Alert("SMS", null, null, AlertType.ERROR);

errorMessageAlert.setTimeout(5000);

sendingMessageAlert = new Alert("SMS", null, null, AlertType.INFO);

sendingMessageAlert.setTimeout(5000);

sendingMessageAlert.setCommandListener(this);

sender = new SMSSender(smsPort, display, destinationAddressBox,

sendingMessageAlert);

resumeScreen = destinationAddressBox;

}

/**

* startApp should return immediately to keep the dispatcher

* from hanging.

*/

public void startApp() {

display.setCurrent(resumeScreen);

}

/**

* Remember what screen is showing

*/

public void pauseApp() {

resumeScreen = display.getCurrent();

}

/**

* Destroy must cleanup everything.

* @param unconditional true if a forced shutdown was requested

*/

public void destroyApp(boolean unconditional) {

}

/**

* Respond to commands, including exit

* @param c user interface command requested

* @param s screen object initiating the request

*/

public void commandAction(Command c, Displayable s) {

try {

if (c '+') {

startPos = 1;

}

for (int i = startPos; i < chars.length; ++i) {

if (!Character.isDigit(chars[i])) {

return false;

}

}

return true;

}

}