Implement a textbox in a mobile game

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.TextBox;
import javax.microedition.lcdui.TextField;
import javax.microedition.lcdui.Ticker;
import javax.microedition.midlet.MIDlet;

public class TextBoxMIDlet extends MIDlet {

// Maximum size of the text in the TextBox
private static final int MAX_TEXT_SIZE = 64;

// The TextBox
protected TextBox textBox;

// The MIDlet's Display object
protected Display display;

// Flag indicating first call of startApp
protected boolean started;

protected void startApp( ) {

if (!started) {

// First time through - initialize
// Get the text to be displayed
String str = null;

try {

InputStream is = getClass( ).getResourceAsStream(
"resources/text.txt");

InputStreamReader r = new InputStreamReader(is);
char[] buffer = new char[32];
StringBuffer sb = new StringBuffer( );
int count;

while ((count = r.read(buffer, 0, buffer.length)) > -1) {
sb.append(buffer, 0, count);
}

str = sb.toString( );

} catch (IOException ex) {
str = "Failed to load text";
}

// Create the TextBox
textBox = new TextBox("TextBox Example", str,
MAX_TEXT_SIZE, TextField.ANY);

// Create a ticker and install it
Ticker ticker = new Ticker("This is a ticker...");
textBox.setTicker(ticker);

// Install the TextBox as the current screen
display = Display.getDisplay(this);
display.setCurrent(textBox);
started = true;
}
}

protected void pauseApp( ) {

}

protected void destroyApp(boolean unconditional) {

}

}