Where does the data members of a class are stored?

Question

I am bit confused about it that where does the data members of a class are stored, in stack or heap. If i have below code: class Test { int A = 0; } then, where does "A" stores? I know value types stores in stack and reference types stores in heap, so class "Test" would store in Heap, but confused about "A". Could anyone help me to understand this.

Sreekanth Reddy · Answer

Hi munish, " I have googled it and found most links suggests that the Value type which is an instance field of a class wil be stored on heap. " I feel it is wrong... In general we knew that "value type" stores in "stack". Ofcourse I read your total point like " Value type which is an instance field of a class " but, I dont think so, that the field "A" is not the instance field. Because its private & you cant access even you create an object. Then how come it stores in "Heap" ? That's the reason I stated as "It stores in stack". Hope you understood. Thank you. Mark as answer, If it helps.

Sreekanth Reddy · Answer

Hi Munish, As "A" is the private member(field) of the class. Whenever the object has been created we cant access it(so it wont store in heap). It will be storing in stack . Another case for storing in heap is as follows : If it is present inside the method of the class then it becomes as local member and going to be stored in stack & after its usage of the concern method the memory is going to gets deallocated. Hope you understood. If not please come up with your query. Thank you.

Puneet Kankar · Answer

Please check given below links. https://stackoverflow.com/questions/13624462/where-does-class-object-reference-variable-get-stored-in-java-in-heap-or-stac https://hackthejava.wordpress.com/2015/01/05/memory-architecture-of-jvmheap-stack-memory/ https://www.daniweb.com/programming/software-development/threads/450593/class-members-on-stack-or-heap

Munish Kumar · Answer

Thank you all for your replies. I have googled it and found most links suggests that the Value type which is an instance field of a class wil be stored on heap. Find below links: Puneet suggested this: https://hackthejava.wordpress.com/2015/01/05/memory-architecture-of-jvmheap-stack-memory/ Bryian suggested this: http://jonskeet.uk/csharp/memory.html I have found this: https://www.c-sharpcorner.com/article/C-Sharp-heaping-vs-stacking-in-net-part-i/ Please correct me if i misunderstood the concept mentioned in above links.

Bryian Tan · Answer

Stack. The following might help https://www.c-sharpcorner.com/article/stack-heap-value-type-and-reference-type-in-c-sharp/ http://jonskeet.uk/csharp/memory.html