多选题
class A { } class Alpha { private A myA = new A（）； void dolt（ A a ） { a = null； } void tryIt（） { dolt（ myA ）； } } Which two statements are correct？（）
发布日期：2021-10-11
A
There are no instanced of A that will become eligible for garbage collection.
B
Explicitly setting myA to null marks that instance to be eligible for garbage collection.
C
Any call on tryIt（） causes the private instance of A to be marked for garbage collection.
D
Private instances of A become eligible for garbage collection when instances of Alpha become eligible for garbage collection.
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