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

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

否，不要这样做，除非特定情况（例如静态字段）或您知道变量/字段的生命周期很多

是的，但具有对您的VM限制的工作知识（以及如何导致意外阻止内存块）

• 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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