Pratikum Java II

Program Listing LoginForm

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

class TugasKita extends JFrame implements ActionListener{

JLabel Lusername = new JLabel("Username");

JLabel Lpassword = new JLabel("Password");

JTextField Tusername = new JTextField(15);

JPasswordField Ppassword = new JPasswordField(15);

JButton blogin = new JButton("Login");

JButton bcancel = new JButton("Cancel");

public TugasKita( String Judul ){

add(Lusername);

add(Tusername);

add(Lpassword);

add(Ppassword);

add(blogin);

add(bcancel);

setVisible(true);

setSize(300, 125);

setLayout(null);

setDefaultCloseOperation(3);

setTitle(Judul);

setLayout(new FlowLayout());

blogin.addActionListener(this);

bcancel.addActionListener(this);

}

public void actionPerformed(ActionEvent ae) {

if(ae.getSource() == blogin) {

if(Tusername.getText().equals("123090252")&&Ppassword.getText().equals("javadua"))

JOptionPane.showMessageDialog(this, "Login Berhasil\n" +

"", "Pesan",

JOptionPane.INFORMATION_MESSAGE);

else

JOptionPane.showMessageDialog(this, "Login Salah\n" +

"Coba Lagi.....!!!", "Pesan",

JOptionPane.INFORMATION_MESSAGE);

Tusername.setText("");

Ppassword.setText("");

}

if(ae.getSource()==bcancel){

System.exit(0); }

    }

}

public class Tugasku {

public static void main(String[] args) {

TugasKita p = new TugasKita("Login Form"); }

}

OUTPUT

Tampilan :

Setelah dimasukkan Username “123090252” dan Password “javadua”

  

Setelah pilih Login

 

Jika Password Salah