public void pedirAmistad(String Nick, String receptor) { //??
        try {
            String queryString = "INSERT INTO peticionAmistad ( emisor, receptor) VALUES(?,?)";
            connection = getConnection();
            ptmt = connection.prepareStatement(queryString);
            ptmt.setString(1, Nick);
            ptmt.setString(2, receptor);       
            ptmt.executeUpdate();
            System.out.println("Data Added Successfully");
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            try {
                if (ptmt != null) {
                    ptmt.close();
                }
                if (connection != null) {
                    connection.close();
                }
            } catch (SQLException e) {
                e.printStackTrace();
            } catch (Exception e) {
                e.printStackTrace();
            }

        }
        }