Midlet Application : opening new form

Question

Hello,
I want to create a midlet aplication. I am using Sun's wireless toolkit. in the application, the user is presented. with the uname and psswd textbox. on successful login, after displaying the alert, I want to show another form, where the user can input some data, and then saves the form. How can display some different form from this midlet app. suggest please. below is my code.
the function doLogin verifies the user authentication.
import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.*;
public class UserLogin extends MIDlet implements CommandListener
     private Display display;
     private TextField userName,password;
     public Form form;
     private Command login,cancel;
     private Image img, imge, img2;
     public UserLogin() {
          form = new Form("Sign in");
          userName = new TextField("LoginID:", "", 30, TextField.ANY);
          password = new TextField("Password:", "", 30, TextField.PASSWORD);
          cancel = new Command("Cancel", Command.CANCEL, 2);
          login = new Command("Login", Command.OK, 2);
          try{
               img = Image.createImage("/logo.png");
               imge = Image.createImage("/front_left1_bad.png");
               img2 = Image.createImage("/Congratulations-1.png");
          }catch(Exception e){
               System.out.println(e.getMessage());
     public void startApp() {
          display = Display.getDisplay(this);
          try{form.append(img);}catch(Exception e){}
          form.append(userName);
          form.append(password);
          form.addCommand(cancel);
          form.addCommand(login);
          form.setCommandListener(this);
          display.setCurrent(form);
     public void pauseApp() {}
     public void destroyApp(boolean unconditional) {
          notifyDestroyed();
     public void validateUser(String name, String password)
          String result = DoLogin.doLogin(name,password);
          System.out.println("THE RESULT IS:"+result);
          if(result.equals("T"))
               showMsg();
          else if(result.equals("F"))
               tryAgain();
     public void showMsg() {
          Alert success = new Alert("Login Successfully", "Your Login Process is completed!", img2, AlertType.INFO);
          success.setImage(img2);
          userName.setString("");
          password.setString("");
          display.setCurrent(success, form);          
     public void tryAgain() {
          Alert error = new Alert("Login Incorrect", "Please try again", imge, AlertType.ERROR);
          error.setTimeout(900);
          error.setImage(imge);
          userName.setString("");
          password.setString("");
          display.setCurrent(error, form);
     public void commandAction(Command c, Displayable d) {
          String label = c.getLabel();
          if(label.equals("Cancel")) {
               destroyApp(true);
          } else if(label.equals("Login")) {
               validateUser(userName.getString(), password.getString());
}

Answer 1

Hello,
First of all thanks for the reply. Is there any IDE to write the midlet application which like highlights the keywords and shows format etc. I am using wordpad and Sun's WTK, as I am new to midlet development its a bit hard to find the mistakes using those.
Once again, If in a form I want to generate variable number of textboxes based on a database reply How should I do it, I did the following but it didnt work. It didn't also added the command buttons to the new screen. I bolded the part didnt work in my code.
public void showMsg() {
          Alert success = new Alert("Login Successfully", "Your Login Process is completed!", img2, AlertType.INFO);
          success.setImage(img2);
          addCform = new Form("Add Concern");
          userName.setString("");
          password.setString("");
          display.setCurrent(success,  addCform);
          title = new TextField("Title:", "", 10, TextField.ANY);
          desc = new TextField("Description:", "", 30, TextField.ANY);
          addCform.append(title);
          addCform.append(desc);
          *cancelC = new Command("Cancel", Command.CANCEL, 2);*
*          save = new Command("Save", Command.OK, 2);*
*          form.addCommand(cancelC);*
*          form.addCommand(save);*
          *for(int i=0;i<5;i++)*
*               txtbox= new TextField("Text","",10,TextField.ANY);*
*               addCform.append(txtbox[i]);*