What is Heap and Stack?

[samualres]

Hi, Can anyone tell me what is the Stack and Heap? Is it related to the memory of ram or object? I want to know what exactly it is?

[Modifier]

Hi, I don't think that you will get in details about the stack and heap from me, but basically Stack is memory to store objects in Ram memory and Heap is kernal alloted memory to store objects while making any type of script or any type of program. From this you will get the actual logic, what exactly the stack and heap is. But, I don't know why these two types of memory allocation was used to create any program.

[Praetor]

Hi, you want to know what is heap and stack, right? There are basically three segments of memory and they are used when any program is loaded into the memory. They are as follows:

• text segment: Here compiled code of the program resides
• stack segment: This memory segment is allocated for automatic variables. It uses Last In First Out pattern. That means, it is a storage device where new storage is allocated and deallocated at only one end.
• heap segment: This memory segment is allocated and deallocated in an arbitrary order and the pattern of allocation and size of blocks is not known until the execution of program.

[kelfro]

Hi friends, Stacks is memory regions where data is added or removed in a last-in-first-out manner. In many computer programs region of memory referred to as its stack. It may add some data to the top of the stack at the time of execution of the program. And when the function terminates whole execution all data from the stack regarding that program will be removed by either the program itself or by the garbage collector. Heap is the memory segment which is used in most of the computer program during execution of that program. Stack has fixed duration of time to store the data. But heap data can be removed at any time by using any method of programming or by using garbage collector.

[Katty]

Hi, the stack is the section of memory that is allocated for automatic variables within Methods. When data is stored in stack memory it is stored with the form of Last In First Out (LIFO) method. That means that whenever the deallocation of the memory will be done it can be done from one end only, that is from the top of the stack. Basically it is temporary storage memory where you will able to remove the data which is added at first. Heap is completely reverse of the stack. It provides the dynamic allocation of memory. You will able to allocate and deallocate the memory in arbitary order. This allocation of memory is not know until the runtime. Between the stack and heap, stack provides you faster responce than the heap, but it is more expensive than heap.

[Zecho]

Hi, I don't have more knowledge about the heap and stack. I Just know that Stack is used for storage of the value types and heap is used for storage of the reference type. And also stack provide you temporary memory allocation space and heap provides you memory allocation until you want the memory to be used.