Login dalam Java

Monday, March 28, 2011 10:26 PM by Computer and Programming
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class SimpleLogin extends JFrame implements ActionListener {
private JLabel label1, label2;
private JTextField txtUser;
private JPasswordField pwdPass;
private JButton btnLogin, btnExit;

public SimpleLogin() {super ("Login here...");

Container container = getContentPane();
container.setLayout(new FlowLayout());

label1 = new JLabel ("Username : ");
label2 = new JLabel ("Password : ");

txtUser = new JTextField (20);
txtUser.setToolTipText("Input Username");
pwdPass = new JPasswordField(20);

                                btnLogin = new JButton ("Login");
                                btnLogin.addActionListener(this);
                                btnExit = new JButton ("Exit");
                                btnExit.addActionListener(this);

                                container.add(label1);
                                container.add(txtUser);
                                container.add(label2);
                                container.add(pwdPass);
                                container.add(btnLogin);
                                container.add(btnExit);

                                setSize (300,200);
                                setVisible (true);
                }

                public static void main (String args[]) {
                SimpleLogin test = new SimpleLogin();
                test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                }

                private String user = "", pass = "";
                public void actionPerformed (ActionEvent e) {
                if (e.getSource() == btnLogin) {
                user = txtUser.getText();
                pass = pwdPass.getText();
                if (user.equals("achmatim") && pass.equals("otim")) {
                JOptionPane.showMessageDialog(null, "Login successfull");
                } else JOptionPane.showMessageDialog(null, "Username and password dosn't match!");
                txtUser.setText("");
                pwdPass.setText("");
                 txtUser.requestFocus(true);
              } } 
else if (e.getSource() == btnExit) JOptionPane.showMessageDialog(null,"Thanks to try my program. See you..");
   System.exit(0);
                                }
                }
}

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