java.lang.ClassCastException：trail1modified 不能轉換為 java.applet.Applet (java.lang.ClassCastException: trail1modified cannot be cast to java.applet.Applet)

問題描述

java.lang.ClassCastException：trail1modified 不能轉換為 java.applet.Applet (java.lang.ClassCastException: trail1modified cannot be cast to java.applet.Applet)

我正在使用 jGRASP。它有一個功能，我可以將程序作為小程序運行。但我得到這個錯誤。

java.lang.ClassCastException: trail1modified cannot be cast to java.applet.Applet
    at sun.applet.AppletPanel.createApplet(AppletPanel.java:785)
    at sun.applet.AppletPanel.runLoader(AppletPanel.java:714)
    at sun.applet.AppletPanel.run(AppletPanel.java:368)
    at java.lang.Thread.run(Thread.java:619)

your class trail1modified does not extend java.applet.Applet or any of its subclasses.

(by razshan、pstanton)

參考文件

1. java.lang.ClassCastException: trail1modified cannot be cast to java.applet.Applet (CC BY‑SA 2.5/3.0/4.0)