Windows App Login with java programing

Below is a complete script for Java code, creating a login app with Eclipse

package login;

import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;

import java.awt.Font;
import java.awt.Color;
import java.awt.SystemColor;
import javax.swing.JTextField;

import calculator.calci;

import javax.swing.JPasswordField;
import javax.swing.JButton;
import javax.swing.JSeparator;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class Login_System {

	private JFrame frame;
	private JTextField textField;
	private JPasswordField passwordField;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					Login_System window = new Login_System();
					window.frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the application.
	 */
	public Login_System() {
		initialize();
	}

	/**
	 * Initialize the contents of the frame.
	 */
	private void initialize() {
		frame = new JFrame();
		frame.setForeground(Color.LIGHT_GRAY);
		frame.setBounds(100, 100, 402, 295);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.getContentPane().setLayout(null);
		
		JLabel lblNewLabel = new JLabel("USER LOGIN");
		lblNewLabel.setForeground(SystemColor.controlText);
		lblNewLabel.setFont(new Font("SansSerif", Font.BOLD, 50));
		lblNewLabel.setBounds(82, 11, 368, 44);
		frame.getContentPane().add(lblNewLabel);
		
		JLabel lblNewLabel_1 = new JLabel("USERNAME");
		lblNewLabel_1.setFont(new Font("SansSerif", Font.BOLD, 15));
		lblNewLabel_1.setBounds(41, 93, 92, 24);
		frame.getContentPane().add(lblNewLabel_1);
		
		JLabel lblNewLabel_2 = new JLabel("PASSWORD");
		lblNewLabel_2.setFont(new Font("SansSerif", Font.BOLD, 15));
		lblNewLabel_2.setBounds(41, 143, 92, 31);
		frame.getContentPane().add(lblNewLabel_2);
		
		textField = new JTextField();
		textField.setFont(new Font("Tahoma", Font.BOLD, 15));
		textField.setBounds(167, 95, 152, 20);
		frame.getContentPane().add(textField);
		textField.setColumns(10);
		
		passwordField = new JPasswordField();
		passwordField.setFont(new Font("Tahoma", Font.BOLD, 15));
		passwordField.setBounds(167, 148, 152, 20);
		frame.getContentPane().add(passwordField);
		
		JButton btnLogin = new JButton("LOGIN");
		btnLogin.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				String password = passwordField.getText();
				String username = textField.getText();
				if(password.contains("king")&& username.contains("user"))
				{
					passwordField.setText(null);
					textField.setText(null);
				
					JOptionPane.showMessageDialog(null, "LOGIN SUCCSES","LOGIN SUCCSES",JOptionPane.ERROR_MESSAGE);
				}
				else
				{
 
					JOptionPane.showMessageDialog(null, "WRONG SOMETHING","LOGIN ERROR",JOptionPane.ERROR_MESSAGE);
				}
				
				
				
			}
		});
		btnLogin.setFont(new Font("Tahoma", Font.BOLD, 15));
		btnLogin.setBounds(41, 205, 92, 31);
		frame.getContentPane().add(btnLogin);
		
		JButton btnNewButton = new JButton("RESET");
		btnNewButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				textField.setText(null);
				passwordField.setText(null);
				
			}
		});
		btnNewButton.setFont(new Font("Tahoma", Font.BOLD, 15));
		btnNewButton.setBounds(209, 205, 92, 31);
		frame.getContentPane().add(btnNewButton);
		
		JSeparator separator = new JSeparator();
		separator.setBounds(10, 192, 466, 2);
		frame.getContentPane().add(separator);
		
		JSeparator separator_1 = new JSeparator();
		separator_1.setBounds(10, 66, 466, 2);
		frame.getContentPane().add(separator_1);
	}
}