[pushgod]

Hey im really new 2 j2me n i ws tryin 2 execute dis code of login. But im havin problem wid creation of image. The code 4 login is working but it is nt displayin d imgs . It is giving null pointer exception while creating img. The imges r stored on c drive as mentioned in d path.


Can anyone plz help me???????








import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.*;

public class LoginExample extends MIDlet implements CommandListener{
private Display display;
private TextField userName,password;
public Form form;
private Command login,cancel;
private Image img, imge, img2;

public LoginExample() {
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("c:/pn.png");
imge = Image.createImage("c:/pn.png");
img2 = Image.createImage("c:/pn.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) {
if (name.equals("sandeep") && password.equals("sandeep")) {
showMsg();
} else {
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());
}
}
}

[Tiger79]

try not to double-post please...
http://discussion.forum.nokia.com/fo...d.php?t=161225

[grahamhughes]

Also, those of us over the age of 30 would find it much easier to read your posts if you used actual words, rather than writing like u r sendin d txt msg. :)

[prakash.raman]

Hi,
I think in place of
if (name.equals("sandeep") && password.equals("sandeep")) {
showMsg();
}

u should use

if (name.comparsTo("sandeep") && password.comparsTo("sandeep")) {
showMsg();
}