分配“空”在每个应用程序中使用后的对象 [英] Assigning "null" to objects in every application after their use
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问题描述
-
在到达范围之后,您是否一直将
null
分配给对象? -
还是你依靠JVM进行垃圾回收?
-
您是否为所有类型的应用程序都这样做?如果是,是否总是一个好的做法?
解决方案
b
Do you always assign
null
to an object after its scope has been reached?Or do you rely on the JVM for garbage collection?
Do you do it for all sort of applications regardless of their length?
If so, is it always a good practice?
解决方案
- no, don't do that, except for specific cases such as static fields or when you know a variable/field lives a lot longer than the code referencing it
- yes, but with a working knowledge of your VM's limits (and how to cause blocks of memory to be held accidentally)
- n/a
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