Dialling a phone number by platformrequest - java-me

Question

I have tried for two days to write a code that dial a phone number , but I failed
I have written a midlet and a form called main as a Displayable the form contains a textfield and
command .
When the application starts up the form should appears and calls the dialed number written in
textField when the command pressed.
the dialing process didn't work with me .
import javax.microedition.io.ConnectionNotFoundException;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.Displayable.*;
import javax.microedition.lcdui.Form.*;
import javax.microedition.midlet.MIDlet;
import java.io.IOException;
import java.io.InputStreamReader;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
public class DiallNumber extends MIDlet implements CommandListener
{
String num;
private Form main;
private Command call,dial;
private TextField phoneField;
Display display;
public DiallNumber()
{
main = new Form("main");
phoneField = new TextField("label","",10,phoneField.PHONENUMBER);
call = new Command("call",call.OK,0);
main.append(phoneField);
main.addCommand(call);
num=this.phoneField.getString().trim();
main.setCommandListener(this);
}
/**}
* From MIDlet. Called when the MIDlet is started.
*/
public void startApp()
{
// The initial display is the first form
display = Display.getDisplay(this);
display.setCurrent(main);
}
public void call( String number) {
try {
platformRequest("tel:"+number);
} catch (ConnectionNotFoundException ex) {
// TODO: Exception handling
}
}
public void commandAction(Command c, Displayable d){
if(d==main)
{
if(c==call)
call(""+num);
}
}
public void pauseApp()
{
// No implementation required
}
/*
* /
*/
/**
* From MIDlet. Called to signal the MIDlet to terminate.
*
* #param unconditional
* whether the MIDlet has to be unconditionally terminated
*/
public void destroyApp(boolean unconditional)
{
// No implementation required
}
/**
* From CommandListener. Called by the system to indicate that a command has
* been invoked on a particular displayable.
*
* #param command
* the command that was invoked
* #param displayable
* the displayable where the command was invoked
*/
}
My log trace
Copying 1 file to C:\Users\ELHADI\Documents\NetBeansProjects\DiallNumber2\dist\nbrun5217990045006831680
Copying 1 file to C:\Users\ELHADI\Documents\NetBeansProjects\DiallNumber2\dist\nbrun5217990045006831680
Jad URL for OTA execution: http://localhost:8082/servlet/org.netbeans.modules.mobility.project.jam.JAMServlet/C%3A/Users/ELHADI/Documents/NetBeansProjects/DiallNumber2/dist//DiallNumber2.jad
Starting emulator in execution mode
Installing suite from: http://127.0.0.1:49320/DiallNumber2.jad
[WARN] [rms ] javacall_file_open: _wopen failed for: C:\Users\ELHADI\javame-sdk\3.0\work\0\appdb\_delete_notify.dat

Answer 1

I have solved the problem
import javax.microedition.io.ConnectionNotFoundException;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.Displayable.*;
import javax.microedition.lcdui.Form.*;
import javax.microedition.midlet.MIDlet;
import java.io.IOException;
import java.io.InputStreamReader;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
public class DiallNumber extends MIDlet
{
private Display display;
private MIDlet midlet;
Form f = new form("f");
/**}
* From MIDlet. Called when the MIDlet is started.
*/
public void startApp()
{
display = Display.getDisplay(this);
display.setCurrent(f);
}
public void pauseApp()
{
// No implementation required
}
/*
* /
*/
/**
* From MIDlet. Called to signal the MIDlet to terminate.
*
* #param unconditional
* whether the MIDlet has to be unconditionally terminated
*/
public void destroyApp(boolean unconditional)
{
// No implementation required
}
class form extends Form implements CommandListener
{
private Command call;
private TextField phoneField;
private String n;
public form(String title )
{
super(title);
call =new Command("call",call.OK,0);
this.phoneField =new TextField("number","",20,phoneField.PHONENUMBER);
addCommand(call);
append(this.phoneField);
this.setCommandListener(this);
}
public void commandAction(Command c,Displayable d)
{
if(c==call)
{
try
{
n=phoneField.getString().trim();
platformRequest("tel:"+n);
}
catch(javax.microedition.io.ConnectionNotFoundException e)
{e.printStackTrace();}
}
}
}
}