go
英文: Using protected method of the parent class in another package 问题 I have Tadpole class that exten...
120java
upcasting
go
英文: Is an object accessible from a previous reference after it has been upcast (in Java)? 问题 A是一个父类。...
142java
oop
go
英文: When upcasting an object, what parts refer to the parent and what parts refer to the child? 问题 在...
154casting
java
120评论java
upcasting
