import java.io.DataOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;

public class Main extends MIDlet implements CommandListener {

    public Display dsp;
    public Form form;
    public TextField tf;
    public Command next;
    public String str;
    public byte bytes[];
    public int st;

    public void startApp() {
        dsp = Display.getDisplay(this);
        form = new Form("");
        tf = new TextField("Строка", "Название карты", 99, TextField.ANY);
        next = new Command("Next", Command.OK, 1);
        form.append(tf);
        form.addCommand(next);
        form.setCommandListener(this);
        dsp.setCurrent(form);
    }

    public void pauseApp() {
    }

    public void destroyApp(boolean flag) {
    }

    public void commandAction(Command c, Displayable d) {
        if (c == next) {
            Form f = new Form("Результат");
            st = tf.getString().length();
            str = tf.getString();
            try {
                bytes = str.getBytes("UTF-16");
            } catch (UnsupportedEncodingException ex) {
                ex.printStackTrace();
            }
            String file_string = "";
            for (int i = 0; i < bytes.length; i++) {
                file_string += (char) bytes[i];
            }
            f.append("" + st + file_string);
            try {
                save(1);
            } catch (IOException ex) {
                ex.printStackTrace();
            }
            dsp.setCurrent(f);
        }
    }

    public void save(int numt)
            throws IOException {
        for (int i0 = 0; i0 < numt; i0++) {
            FileConnection fileconnection = (FileConnection) Connector.open("file:///" + "root/test.ntv", 3);
            if (fileconnection.exists()) {
                fileconnection.delete();
            }
            fileconnection.create();
            DataOutputStream out = fileconnection.openDataOutputStream();
            //out.writeByte(tf.getString().length() * 2);//
            out.write(bytes);
            out.close();// закриваем 
            fileconnection.close();// закриваем
        }
    }
}