package Logins;
import javax.swing.JOptionPane;
import java.awt.Toolkit;
import java.awt.event.WindowEvent;
import Logins.Login_s;

public class Login extends javax.swing.JFrame {

public Login() {
        initComponents();
}

private void jbtnExitActionPerformed(java.awt.event.ActionEvent evt) {
        System.exit(0);
}

private void jbtnResetActionPerformed(java.awt.event.ActionEvent evt) {
            jtxtUsername.setText(null);
            jPassword.setText(null);
}



 private void jbtnLoginActionPerformed(java.awt.event.ActionEvent evt) {
        String password = jPassword.getText();
        String username = jtxtUsername.getText();
        if (password.contains("one") && (username.contains("king")))
        {
            jtxtUsername.setText(null);
            jPassword.setText(null);
            systemExit();
        }

Login_s Info = new Login_s();
        Info.setVisible(true);

 JOptionPane.showMessageDialog(null, "Invalid Login Credentials", "Login Error", JOptionPane.ERROR_MESSAGE);
        jPassword.setText(null);
        jtxtUsername.setText(null);
    }

public static void main(String args[]) {

 java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Login().setVisible(true);
            }
        });
    }

package Logins;

public class Login_s extends javax.swing.JFrame {

public Login_s() {
        initComponents();
    }

 public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Login_s().setVisible(true);
            }
        });
    }
private javax.swing.JLabel jLabel1;
}