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Use JDBC/Mysql Connector in intellij idea

I’m new in Java, and I need to establish a connection to a MySQL server (local), I have add the libraries in Intellij idea but it seems not work, the IDE can’t find the class i think… I become crazy I’m searching since two hours… I come from visual studio/c# dev environment and i think that i should miss something…

Here you can have a pic from my IDE and the simple code that I wanted use. You can also deduce that I have import the jar in my project (mysql-jdbc).

IDE pic

Edit : here is the code, the comment show where the error appear :

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.*;
import org.*;
import com.mysql.jdbc.Driver;

public class JdbcLogin {
    public String Login;
    public String MotDePasse;
    private boolean Logged = false;

    public void StartBdd(){
        String driverName = "com.mysql.jdbc.Driver";
        Class.forName(driverName); // here is the ClassNotFoundException

        String serverName = "localhost";
        String mydatabase = "suptodo";
        String url = "jdbc:mysql://" + serverName + "/" + mydatabase;

        String username = "root";
        String password = "azerty";
        Connection connection = DriverManager.getConnection(url, username, password);


You have to add ‘mysql:mysql-connector-java:5.1.40’ from maven or add it as java library as shown:

enter image description here