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Java泛型lowerbound_Java_Generics - Fatal编程技术网
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Java泛型lowerbound

java generics

Java泛型lowerbound,java,generics,Java,Generics,有人能告诉我为什么这个不行吗 List<? super Person> list = new ArrayList<>(); list.add(new Object()); List假设您有一个类层次结构，如Object->Movable->Person，在这种情况下，List

有人能告诉我为什么这个不行吗

List<? super Person> list = new ArrayList<>();
list.add(new Object());

List假设您有一个类层次结构，如
Object->Movable->Person
，在这种情况下，
List