Form Login J2ME

Sedikit berbagi informasi tentang pemrograman java khususnya J2ME, ini source code untuk aplikasi Login untuk J2ME.
Semoge bermanfaat!!
:)


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

public class FormLogin extends MIDlet implements CommandListener, ItemCommandListener {  
    Display display;  
    Form textForm;  
    Command exitCommand = new Command("Exit", Command.EXIT, 1);
    Command exitToForm = new Command("Back", Command.EXIT, 1);
    Command ok = new Command("Set", Command.ITEM, 0);
    Ticker ticker = new Ticker("Silahkan Login di Sini!!"); 
    TextField user,passwd;
    StringItem button;
    Image imge, img2;

    public FormLogin(){      
        display = Display.getDisplay(this);

        textForm = new Form("Masukan Nama dan Password :");      
        textForm.addCommand(exitCommand);      
        textForm.setCommandListener(this);
              
        user = new TextField("USERNAME", "", 64, TextField.ANY);      
        passwd = new TextField("PASSWORD", "", 64, TextField.PASSWORD);                   
       
        button = new StringItem("", "Login", Item.BUTTON);       
        button.setDefaultCommand(ok);       
        button.setItemCommandListener(this);
                         
        textForm.append(user);      
        textForm.append(passwd);  
        textForm.append(button);       
        textForm.setTicker(ticker);
       
         try{
     
        imge = Image.createImage("/gagal.png");
        img2 = Image.createImage("/sukses.png");
        }catch(Exception e){
        System.out.println(e.getMessage());
    }
    } 

    public void startApp() {      
        display.setCurrent(textForm);   
    }
   
    public void pauseApp() {}   

    public void destroyApp(boolean unconditional) {}  

    public void commandAction(Command c, Displayable d){      
        if (c == exitCommand){
            destroyApp(true);
            notifyDestroyed();

        }else if (c == exitToForm){
            display.setCurrent(textForm);

        }
    }
    public void commandAction(Command c, Item item){
        if(c==ok || button == item){
            if(user.getString().equals("") || passwd.getString().equals("")) {
                Alert pesan1 = new Alert ("Warning !!!!","Username dan Password belum dimasukkan!!!",null,AlertType.WARNING);
                pesan1.setImage(imge);
                pesan1.setTimeout(2000);
                display.setCurrent(pesan1);
            }else if(user.getString().equals("hardi")) {
                  if (passwd.getString().equals("251091")) {
                      Alert pesan = new Alert ("Informasi !!!!","Login Anda Berhasil",null,AlertType.INFO);
                      pesan.setImage(img2);
                      pesan.setTimeout(Alert.FOREVER);
                      pesan.addCommand(exitToForm);
                      pesan.setCommandListener(this);
                      user.setString("");
                      passwd.setString("");
                      display.setCurrent(pesan);
                  }else{
                      Alert pesan2 = new Alert ("Informasi !!!!","Password yang Anda masukkan Salah, Silahkan coba lagi!!",null,AlertType.INFO);
                      pesan2.setTimeout(2000);
                      pesan2.setImage(imge);
                      display.setCurrent(pesan2);
                  }
            }else{
                Alert pesan3 = new Alert ("Informasi !!!!","Username yang Anda masukkan Salah, Silahkan Coba lagi!!",null,AlertType.INFO);
                pesan3.setTimeout(2000);
                pesan3.setImage(imge);
                display.setCurrent(pesan3);
            }
        }
    }
}

 

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