Classe ConnBD

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package util;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

/**
 *
 * @author Jivago
 */
public class ConnBD {

    public static Connection getConnection() {

        String strCon
                = "jdbc:mysql://localhost:3306/aulas";

        try {
            Class.forName("com.mysql.jdbc.Driver");
            Connection con;
            con = DriverManager
                    .getConnection(strCon, "root", "");


            return con;

        } catch (SQLException ex) {
            System.out.println("Erro conectando"
                    + "no banco de dados"
                    + ex.getMessage());
        } catch (ClassNotFoundException ex) {
            System.out.println(ex.getMessage());
        }

        return null;

    }

}