Java/Database SQL JDBC/Delete

Delete record from table

  
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
public class Main {
  public static void main(String[] args) throws Exception {
    String url = "jdbc:mysql://localhost/sampledb";
    String username = "root";
    String password = "";
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection(url, username, password);
    String sql = "DELETE FROM users WHERE user_id = ?";
    int userId = 2;
    PreparedStatement statement = connection.prepareStatement(sql);
    statement.setInt(1, userId);
    int rows = statement.executeUpdate();
    System.out.println(rows + " record(s) deleted.");
    connection.close();
  }
}