simple class to comminucate with Mysql Database

.java

package sqlDatabase;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class Main {

	public static Connection getConnection() throws Exception {
		try {
			String driver = "com.mysql.cj.jdbc.Driver";
			String url = "jdbc:mysql://localhost:3306/java_miniprojet";
			String username = "aminelch";
			String password = "demo";
			Class.forName(driver);

			Connection conn = DriverManager.getConnection(url, username, password);
			System.out.println("Connected");
			return conn;
		} catch (Exception e) {
			System.out.println(e);
		}

		return null;
	}

	public static ResultSet listeUtilisateurs(Connection db) throws Exception {

		String req = "SELECT * FROM users";

		Statement stm = db.createStatement();
		ResultSet res = stm.executeQuery(req);
		return res;

	}
	
	public static void main(String[] args) throws Exception {
		Connection mysqldb = getConnection();
		ResultSet utilisateurs = listeUtilisateurs(mysqldb);
		
		

		while (utilisateurs.next()) {
			System.out.println(utilisateurs.getString("nom"));
			System.out.println(utilisateurs.getString("motdepasse"));
		}

	}

	

}