Login Java

package com.login;

import java.sql.*;
import java.awt.BorderLayout;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JPasswordField;

public class Login extends JFrame {

	private JPanel contentPane;
	private JTextField user;
	private JPasswordField pass;

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

	/**
	 * Create the frame.
	 */
	public Login() {
		setTitle("Login");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 450, 300);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		JLabel lblNewLabel = new JLabel("LOGIN");
		lblNewLabel.setBounds(10, 11, 46, 14);
		contentPane.add(lblNewLabel);
		
		JLabel lblUsername = new JLabel("Username");
		lblUsername.setBounds(10, 48, 66, 14);
		contentPane.add(lblUsername);
		
		user = new JTextField();
		user.setBounds(86, 45, 86, 20);
		contentPane.add(user);
		user.setColumns(10);
		
		JLabel lblPassword = new JLabel("Password");
		lblPassword.setBounds(10, 92, 66, 14);
		contentPane.add(lblPassword);
		
		JButton btnLogin = new JButton("Login");
		btnLogin.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
			//ISTRUZIONI PER DATABASE
				try {
				Class.forName("com.mysql.cj.jdbc.Driver");
				Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/login","root","");
			Statement stmt = con.createStatement();
			String sql="Select * from login.identita where UserName='"+user.getText()+"'and Password='"+pass.getText().toString()+"'";
				ResultSet rs = stmt.executeQuery(sql);
				if(rs.next())
					JOptionPane.showMessageDialog( null,"Login Successfully...");
				else
					JOptionPane.showMessageDialog(null,"Login Incorrect...");
				con.close();
				}catch(Exception ex) {System.out.print(ex);}
			
			}
			});
		btnLogin.setBounds(10, 136, 89, 23);
		contentPane.add(btnLogin);
		
		pass = new JPasswordField();
		pass.setBounds(86, 89, 86, 20);
		contentPane.add(pass);
	}
}