Read file content to TextBox

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

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 {
private static final int MAX_TEXT_SIZE = 64;

protected TextBox textBox;

protected Display display;

protected void startApp() {
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";
}
textBox = new TextBox("TextBox Example", str, MAX_TEXT_SIZE, TextField.ANY);

Ticker ticker = new Ticker("This is a ticker...");
textBox.setTicker(ticker);
display = Display.getDisplay(this);
display.setCurrent(textBox);

}

protected void pauseApp() {
}

protected void destroyApp(boolean unconditional) {
}
}