java - not to keep references to the objects from this iterator ?
Be careful not to keep references to the objects from this iterator.
To improve GC performance the same object is re-used in next().
请问这段注释是什么含义？
Be careful not to keep references to the objects from this iterator.
To improve GC performance the same object is re-used in next().
请问这段注释是什么含义？
阿神2017-04-17 17:16:31
下面的理解對嗎？
不要保存迭代器裡的物件的參考。
舉個例子， iterator裡面有十個對象，你用一次next，第一個就被移出了，所有執行完，迭代器為空，如果你在下面還引用這個迭代器裡的對象的話，就會報空指針了
