为什么 Java 泛型不能实现接口？
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Why can't a Java Generic implement an Interface?
提问by Q Zhao-Liu
Is there a logical reason why E cannot implement my interface HasName?
E 无法实现我的接口 HasName 是否有合乎逻辑的原因？
public class SinglyLinkedList<E extends HasName> {
// stuff...
}
采纳答案by Bohemian
The extendskeyword applies to interfaces too. That is:
该extends关键字也适用于接口。那是：
public class SinglyLinkedList<E extends HasName> {
Means that Emust be a type that extends a class, or implements an interface, called HasName.
意味着E必须是扩展类或实现接口的类型，称为HasName.
It is not possible to code E implements HasName- that is implied by E extends HasName.
无法编码E implements HasName- 这由E extends HasName.
