more secure mysql connection through jdbc

gistfile1.txt

import java.sql.*;

/**
 * Created by yasin_000 on 15.11.2017.
 */
public class Database {
    static final String JDBC = "com.mysql.jdbc.Driver";
    static final String DB_URL = "jdbc:mysql://localhost:3306/world";


    public static void main(String[] args) {
        try {
            Class.forName(JDBC);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        try (Connection connection = DriverManager.getConnection(DB_URL, "root", "951753yasin@@");
             PreparedStatement statement = connection.prepareStatement("SELECT * FROM country WHERE population < 10000");
             ResultSet resultSet = statement.executeQuery()){
            while(resultSet.next())
                System.out.println(resultSet.getString("Name"));
        } catch (SQLException e1) {
            e1.printStackTrace();
        }
    }

}