CODEWITHSUNDEEP
javaclassoopobjectmemory
sdk
sdk

Reputation: 307

Destroy java object

We can delete object in C++ as

delete <object>

How can I delete object in java without inbuilt garbage collector. If I perform

object = null

as per my knowledge it won't deallocate the memory. How can I free the space.

Upvotes: 3

Views: 2153

Answers (3)

Jose Luis
Jose Luis

Reputation: 994

In Java there isn't "loss of memory" as there is in c++. You don't need to free this memory, the Garbage Collector will do it for you.

You can find more information about the Garbage Collector in this link: http://www.cubrid.org/blog/dev-platform/how-to-tune-java-garbage-collection/

And perhaps this link Is there a destructor for Java? could be usefull to you.

Upvotes: 0

Sagar D
Sagar D

Reputation: 2618

An object in java is eligible for garbage collection when you :

  1. Remove all the references to it.
  2. Leave the block where it was declared

When it becomes eligible, care will be taken by the JVM to free up the used memory by that object at appropriate time.

Manually calling System.gc() is not a good idea at all. Any code that depends on it for correctness is certainly broken; any that rely on it for performance are most likely broken. So, in short, there is no direct control of the programmer on the memory allocation/ deallocation.

Upvotes: 3

Jan
Jan

Reputation: 13858

You don't need to.

The Garbage Collector will do that any time it pleases.

As long as there's no live reference to an object anymore it will be released ... then :-)

Upvotes: 2

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