[pdrnsf]

I`m new to programming in J2ME and am trying to create a program using the Nokia series 60 2nd edition SDK. I`m also using ktoolbar and MIDP 1.0.

It works fine if I use the default emulator that comes with ktoolbar but when I use the series 60 one I get the following error:

Error preverifying class java.lang.String

ERROR: floating-point arguments should not appear
com.sun.kvem.ktools.ExecutionException: Preverifier returned 1
Build failed


I dont have any floats in my code as far as I can tell and so dont know how to get it working.

A basic Hello World program I created also does the same, the code is as follows, Anyone have any ideas?

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

//Midlet class
public class HelloWorldMIDlet extends MIDlet
{
	public HelloWorldMIDlet() { }

	public void startApp()
	{ 
		//Get display
		Displayable current = Display.getDisplay(this).getCurrent();
		if(current == null) 
		{
			//Create new screen
			HelloScreen helloScreen = new HelloScreen(this, "Hello World.");
			//Set the screen
			Display.getDisplay(this).setCurrent(helloScreen);
		}
	}

	public void pauseApp() { }

	public void destroyApp(boolean b) { }

	void exitRequested()
	{
		destroyApp(false);
		notifyDestroyed();
	}
}

class HelloScreen extends TextBox implements CommandListener
{
	private final HelloWorldMIDlet midlet;
	private final Command exitCommand;

	//Constructor
	HelloScreen(HelloWorldMIDlet midlet, String string)
	{
		//Create text box
		super("HelloWorldMIDlet", string, 256, 0);
		//Get the midlet
		this.midlet = midlet;
		//Create Command button
		exitCommand = new Command("Exit", Command.EXIT, 1);
		//Add the command
		addCommand(exitCommand);
		//Listen for command presses
		setCommandListener(this);
	}

	public void commandAction(Command c, Displayable d)
	{
		if(c == exitCommand)
		{
			midlet.exitRequested();
		}
	}
}

[henson2K]

There is no Float data type in CLDC 1.0 devices.
You need to use CLDC 1.1 compatible device or 3rd party emulation classes.
For example http://henson.newmail.ru/j2me/Float.htm

[rj_cybersilver]

Originally posted by henson2K
There is no Float data type in CLDC 1.0 devices.
You need to use CLDC 1.1 compatible device or 3rd party emulation classes.
For example http://henson.newmail.ru/j2me/Float.htm

I tried following the link..you posted..but i think its down. could you direct me to other links where i could find 3rd party emulators for cldc1.0 devices to run cldc1.1?

[njzk2]

try checking the configuration of your compiler.
it might be triing to use cldc 1.1, instead of 1.0, and therefore use floats.

[meijerpb]

I have the same problem with S60_2nd_FP2_MIDP_SDK while my MIDlet uses no floats.
The older Series_60_MIDP_SDK_2_1 does not give this problem for me.

Peter Meijer

http://www.seeingwithsound.com/midlet.htm

[kakoskin]

This must be an emulator bug!

[meijerpb]

Problem now "fixed" when using the WTK ktoolbar by
changing the project settings' API selection from
CLDC 1.0 to CLDC 1.1, even though I do not use any
floating point. Compilation gives no errors now, but I
wonder if the result will still work with CLDC 1.0 devices?

Peter Meijer