Conexion con base de datos 24.04.2018

DB

package dario.java.db;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;

public class MainDb {

    public static void main(String[] args) {
        try (Connection c = conectarDB("jdbc:mysql://localhost:3306/curso_mysql", "root", "")) {

            Statement stInsert = c.createStatement();
            stInsert.execute("insert into articulos (nombre) values ('clavos')");

            stInsert.execute("delete from articulos where codigo = 3");
            
            stInsert.execute("update articulos set nombre = 'MODIFICADO' where codigo = 2");

            Statement stSelect = c.createStatement();
            ResultSet rs = stSelect.executeQuery("Select * from articulos");

            while (rs.next()) {
                int codigo = rs.getInt("codigo");
                String nombre = rs.getString("nombte");
                System.out.println(codigo + ":" + nombre);
            }

        } catch (SQLException ex) {
            Logger.getLogger(MainDb.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

    public static Connection conectarDB(String strConnection, String usuario, String clave) throws SQLException {
        return DriverManager.getConnection(strConnection, usuario, clave);
    }

}