java - "Cannot subclass the final class"错误，但类不是最终的

Question

这是我的代码:

package basic;

public abstract class Entity {}

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package characters;

import basic.Entity;

public abstract class Character extends Entity {}

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package player;

public class Player extends Character {}

我收到了

The type Player cannot subclass the final class Character.

但我检查了一百万次，我还没有在我的项目中使用 final 一次。什么给了？

Answer 1

您正在扩展 java.lang.Character(不需要导入，因为它来自 java.lang)。

将 import characters.Character 插入到您的 Player 代码中。

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引用:using package members :

For convenience, the Java compiler automatically imports two entire packages for each source file: (1) the java.lang package and (2) the current package (the package for the current file).