Joachim SauerJoachim Sauer 308k5959 gold badges565565 silver badges620620 bronze badges seven This isn't Doing work. I get an error saying that a main method is necessary. If i add the main process, then I really have to phone from there.”super”と”this”を使って、スーパークラスとサブクラスのメンバ変数やメンバ�