Unable to display numerical data in for loop, using BlackBerry SDK 4.5

[Chris Creed]

Hello all

After beating my head on this for all morning, I appeal to the community for some help.

First the code in question, I have a setup that creates a new screen, and calls a class to show a new string every second, like so:

 
package com.stuff.javasandBox;

import net.rim.device.api.ui.UiApplication;

public class MainScreenUpdaterThread extends Thread {
	HellowWorldMainScreen mainScreen;
	private String thisTestText;
	
	public MainScreenUpdaterThread(HellowWorldMainScreen mainScreen) {
		this.mainScreen = mainScreen;
	}
	
	public void run() {
		for (int i=0;i<10;i++) {
			try {
				Thread.sleep(1000);
			} catch (InterruptedException ie) {
				
			}
			
			UiApplication.getUiApplication().invokeLater(new Runnable() {
				public void run() {
					mainScreen.appendLabelText("asd");
				}
			});
		}
	}
}

As you can see, it takes the literal String in mainScreen.appendLabelText, and sends it to this function in the file that called MainScreenUpdaterThread.

final class HellowWorldMainScreen extends MainScreen {
	
	private LabelField labelField;

	public HellowWorldMainScreen() {
		super();
		
		labelField = new LabelField("Hello World");
		add(labelField);

		MainScreenUpdaterThread thread = new MainScreenUpdaterThread(this);
		thread.start();
	}
	
	public void appendLabelText(String string) {
		labelField.setText(labelField.getText() + string);
	}
}

However, I would like to use the number contained in the variable i in the for loop, instead of a literal string. However, when I do so, I get the following error at the i variable in the mainScreen.appendLabelText():

Cannot refer to a non-final variable i inside an inner class defined in a different method

I've tried casting the integer in i to String with no success, and an array to the same thing. Is there just soemthing silly that I've missed here that could be affecting it?