[Help]How to start Java desktop application in NetBeans ?

Hi, I'm trying to write a desktop application from the scratch by
using NetBeans IDE 6.1. I already created 2 files, which are main.java
and login.java. What I need is : when I run the application, the login
form which is called in login.java is directly launched. But I faced
errors in main.java. Please help me to fix it. Here are the codes :

---- main.java -----

package ecgterminal1;

import org.jdesktop.application.Application;
import org.jdesktop.application.SingleFrameApplication;

public class Main extends SingleFrameApplication {

@Override protected void startup() {
show(new login(this)); //ERROR : can't find symbol
}

@Override protected void configureWindow(java.awt.Window root) {
}

public static Main getApplication() {
return Application.getInstance(Main.class);
}

public static void main(String[] args) {
launch(login.class, args); //ERROR : application can't be
applied to ....
}

}


----- login.java -----

package ecgterminal1;

public class login extends javax.swing.JDialog {

public login(java.awt.Frame parent, boolean modal) {
super(parent, modal);
initComponents();
}

---- code generated by netbeans here -----

public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
login dialog = new login(new javax.swing.JFrame(),
true);
dialog.addWindowListener(new
java.awt.event.WindowAdapter() {
public void
windowClosing(java.awt.event.WindowEvent e) {
System.exit(0);
}
});
dialog.setVisible(true);
}
});
}

// Variables declaration - do not modify
private javax.swing.JButton cancel;
private javax.swing.JLabel label;
private javax.swing.JButton login;
private javax.swing.JLabel passwd;
private javax.swing.JTextField passwdTxt;
private javax.swing.JLabel userID;
private javax.swing.JTextField userIDTxt;
// End of variables declaration

}
.

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