Programming Forums > Application Development > Java

JD-Salinger · Jul 10th, 2008, 9:43 PM

i am working on embedding a j2me application to be embedded in a j2se application, ca i do that? any tips? is that possible? can you point me to a link on how can i do that?

Ive read that j2me is a subclass of j2se(do i understand it correctly), if it is, then it's is possible to embed or use the classes of j2me to be used in a j2se application, im experimenting on doing these since i am interested in connecting my cellphone to my application in my pc and input some data in my pc to be redirected to my cellphone. for example the code below when compiled using the SUN WIRELESS TOOLKIT (J2ME) produces errors, saying that the java.awt.Container is not included in the library

 Java Syntax (Toggle Plain Text) 
 
import java.awt.Container;
import javax.swing.*;
 
class HelloButton
{
    public static void main(String[] args)
    {
        JFrame frame = new JFrame("HelloButton");
        Container pane = frame.getContentPane();
        JButton hello = new JButton("Hello,world!");
        pane.add(hello);
        frame.pack();
        frame.setVisible(true);
    }
 
}
 
import java.awt.Container;
import javax.swing.*;

class HelloButton
{
    public static void main(String[] args)
    {
        JFrame frame = new JFrame("HelloButton");
        Container pane = frame.getContentPane();
        JButton hello = new JButton("Hello,world!");
        pane.add(hello);
        frame.pack();
        frame.setVisible(true);
    }

}

or when i compile the code below in j2se produces same errors above

 java Syntax (Toggle Plain Text) 
import javax.microedition.midlet.*;
import javax.microedition.io.*;
import javax.wireless.messageing.*;
 
public class SMS extends MIDlet
{
    String text = "SMS example test";
    String address = "sms://+123456789";
    MessageConnection clientConn;
    public void startApp()
    {
        try
        {
            clientConn = (MessageConnection)Connector.open(address);
            TextMessage Tmsg=(TexMessage)clientConn.newMessage(MessageConnection.TEXT_MESSAGE);
            Tmsg.setPayloadText(text);
        }
        catch(Exception EX)
        {
            System.out.println("Error:"+EX);
        }
    }
    public void pauseApp() {}
    public void destroyApp(boolean unconditional) {}
}
import javax.microedition.midlet.*;
import javax.microedition.io.*;
import javax.wireless.messageing.*;

public class SMS extends MIDlet
{
    String text = "SMS example test";
    String address = "sms://+123456789";
    MessageConnection clientConn;
    public void startApp()
    {
        try
        {
            clientConn = (MessageConnection)Connector.open(address);
            TextMessage Tmsg=(TexMessage)clientConn.newMessage(MessageConnection.TEXT_MESSAGE);
            Tmsg.setPayloadText(text);
        }
        catch(Exception EX)
        {
            System.out.println("Error:"+EX);
        }
    }
    public void pauseApp() {}
    public void destroyApp(boolean unconditional) {}
}

what i have in mind is this

 java Syntax (Toggle Plain Text) 
import java.awt.Container;
import javax.swing.*;
import javax.microedition.midlet.*;
import javax.microedition.io.*;
import javax.wireless.messaging.*;
 
 
class HelloButton
{
    public static void main(String[] args)
    {
        JFrame frame = new JFrame("HelloButton");
        Container pane = frame.getContentPane();
        JButton hello = new JButton("Hello,world!");
        pane.add(hello);
        frame.pack();
        frame.setVisible(true);
        startApp()  // this is from j2me
    }
    //
    // Embedding the classes and compiling in j2se
    //
 public void startApp()
    {
        try
        {
            clientConn = (MessageConnection)Connector.open(address);
            TextMessage Tmsg=(TexMessage)clientConn.newMessage(MessageConnection.TEXT_MESSAGE);
            Tmsg.setPayloadText(text);
        }
        catch(Exception EX)
        {
            System.out.println("Error:"+EX);
        }
    }
 
}
import java.awt.Container;
import javax.swing.*;
import javax.microedition.midlet.*;
import javax.microedition.io.*;
import javax.wireless.messaging.*;


class HelloButton
{
    public static void main(String[] args)
    {
        JFrame frame = new JFrame("HelloButton");
        Container pane = frame.getContentPane();
        JButton hello = new JButton("Hello,world!");
        pane.add(hello);
        frame.pack();
        frame.setVisible(true);
        startApp()  // this is from j2me
    }
    //
    // Embedding the classes and compiling in j2se
    //
 public void startApp()
    {
        try
        {
            clientConn = (MessageConnection)Connector.open(address);
            TextMessage Tmsg=(TexMessage)clientConn.newMessage(MessageConnection.TEXT_MESSAGE);
            Tmsg.setPayloadText(text);
        }
        catch(Exception EX)
        {
            System.out.println("Error:"+EX);
        }
    }

}

So is this possible? thank you for your replies

Jabo · Jul 10th, 2008, 11:25 PM

Since you say j2me is a subset of j2se, I would think not all functionality would be compatible. It's been said that C++ is a subset of C, and most of the members of C will work in C++, but I'm sure there's some that don't.

As far as java.AWT, it's an old library, and wasn't very stable from what I'm told. I think the industry is trying to get away from using it.

JD-Salinger · Jul 10th, 2008, 11:48 PM

but what im concerned of is only the data that is delivered by a certain API of J2ME, what i mean is that there is a modularity between the two... the J2SE serves as the shell and j2me will be on the data...

Jul 10th, 2008, 9:43 PM	#1
JD-Salinger Unknown Join Date: Apr 2008 Location: unknown Posts: 87 Rep Power: 1	can u embed j2me application in a j2se application i am working on embedding a j2me application to be embedded in a j2se application, ca i do that? any tips? is that possible? can you point me to a link on how can i do that? Ive read that j2me is a subclass of j2se(do i understand it correctly), if it is, then it's is possible to embed or use the classes of j2me to be used in a j2se application, im experimenting on doing these since i am interested in connecting my cellphone to my application in my pc and input some data in my pc to be redirected to my cellphone. for example the code below when compiled using the SUN WIRELESS TOOLKIT (J2ME) produces errors, saying that the java.awt.Container is not included in the library Java Syntax (Toggle Plain Text) import java.awt.Container; import javax.swing.; class HelloButton { public static void main(String[] args) { JFrame frame = new JFrame("HelloButton"); Container pane = frame.getContentPane(); JButton hello = new JButton("Hello,world!"); pane.add(hello); frame.pack(); frame.setVisible(true); } } import java.awt.Container; import javax.swing.; class HelloButton { public static void main(String[] args) { JFrame frame = new JFrame("HelloButton"); Container pane = frame.getContentPane(); JButton hello = new JButton("Hello,world!"); pane.add(hello); frame.pack(); frame.setVisible(true); } } or when i compile the code below in j2se produces same errors above java Syntax (Toggle Plain Text) import javax.microedition.midlet.; import javax.microedition.io.; import javax.wireless.messageing.; public class SMS extends MIDlet { String text = "SMS example test"; String address = "sms://+123456789"; MessageConnection clientConn; public void startApp() { try { clientConn = (MessageConnection)Connector.open(address); TextMessage Tmsg=(TexMessage)clientConn.newMessage(MessageConnection.TEXT_MESSAGE); Tmsg.setPayloadText(text); } catch(Exception EX) { System.out.println("Error:"+EX); } } public void pauseApp() {} public void destroyApp(boolean unconditional) {} } import javax.microedition.midlet.; import javax.microedition.io.; import javax.wireless.messageing.; public class SMS extends MIDlet { String text = "SMS example test"; String address = "sms://+123456789"; MessageConnection clientConn; public void startApp() { try { clientConn = (MessageConnection)Connector.open(address); TextMessage Tmsg=(TexMessage)clientConn.newMessage(MessageConnection.TEXT_MESSAGE); Tmsg.setPayloadText(text); } catch(Exception EX) { System.out.println("Error:"+EX); } } public void pauseApp() {} public void destroyApp(boolean unconditional) {} } what i have in mind is this java Syntax (Toggle Plain Text) import java.awt.Container; import javax.swing.; import javax.microedition.midlet.; import javax.microedition.io.; import javax.wireless.messaging.; class HelloButton { public static void main(String[] args) { JFrame frame = new JFrame("HelloButton"); Container pane = frame.getContentPane(); JButton hello = new JButton("Hello,world!"); pane.add(hello); frame.pack(); frame.setVisible(true); startApp() // this is from j2me } // // Embedding the classes and compiling in j2se // public void startApp() { try { clientConn = (MessageConnection)Connector.open(address); TextMessage Tmsg=(TexMessage)clientConn.newMessage(MessageConnection.TEXT_MESSAGE); Tmsg.setPayloadText(text); } catch(Exception EX) { System.out.println("Error:"+EX); } } } import java.awt.Container; import javax.swing.; import javax.microedition.midlet.; import javax.microedition.io.; import javax.wireless.messaging.; class HelloButton { public static void main(String[] args) { JFrame frame = new JFrame("HelloButton"); Container pane = frame.getContentPane(); JButton hello = new JButton("Hello,world!"); pane.add(hello); frame.pack(); frame.setVisible(true); startApp() // this is from j2me } // // Embedding the classes and compiling in j2se // public void startApp() { try { clientConn = (MessageConnection)Connector.open(address); TextMessage Tmsg=(TexMessage)clientConn.newMessage(MessageConnection.TEXT_MESSAGE); Tmsg.setPayloadText(text); } catch(Exception EX) { System.out.println("Error:"+EX); } } } So is this possible? thank you for your replies __________________ ------------------------------------------------------------------------- I thought what I'd Do was, I'd pretend to be one of those deaf mutes ------------------------------------------------------------------------

Jul 10th, 2008, 11:25 PM	#2
Jabo Not a user? Join Date: Sep 2007 Posts: 272 Rep Power: 2	Re: can u embed j2me application in a j2se application Since you say j2me is a subset of j2se, I would think not all functionality would be compatible. It's been said that C++ is a subset of C, and most of the members of C will work in C++, but I'm sure there's some that don't. As far as java.AWT, it's an old library, and wasn't very stable from what I'm told. I think the industry is trying to get away from using it. Last edited by Jabo; Jul 10th, 2008 at 11:37 PM.

Jul 10th, 2008, 11:48 PM	#3
JD-Salinger Unknown Join Date: Apr 2008 Location: unknown Posts: 87 Rep Power: 1	Re: can u embed j2me application in a j2se application but what im concerned of is only the data that is delivered by a certain API of J2ME, what i mean is that there is a modularity between the two... the J2SE serves as the shell and j2me will be on the data... __________________ ------------------------------------------------------------------------- I thought what I'd Do was, I'd pretend to be one of those deaf mutes ------------------------------------------------------------------------

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Programming Forums > Application Development > Java

can u embed j2me application in a j2se application