Read file content to TextBox : File Stream « J2ME « Java Tutorial

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2. J2ME
3. File Stream

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) {
  }
}