Value type Vs Reference type in C# from memory point of view?

Value type vs Reference type in C# Interview Question: What is difference between value type and reference type in C#.net from memory point of view?

Answer: Actually, the basic difference between value types and reference types in C# programming is how they are handled in the memory.

Value Type Vs Reference Type in C#:

Value types are stored on stack memory. Whereas C# reference types are stored on heap memory.
Value type get freed on its own from stack when they go out of scope. Whereas reference type need garbage collector to free memory.
For value types, memory is allocated from stack memory at compile time. Whereas for reference type memory (from heap) is allocated on run time.

Value type in C#:

Value types stored on stack. In below figure, we have declared int a variable and have assigned value 5 that is stored on stack.

When we assign variable a to a new variable say int b i.e. int b=a; value of a will be copied to variable b another space. So, when we modify the value b, value of a will not be changed.

Reference type in C#:

In reference type object will be created on Heap. Consider a class Counter

class Counter { public x;}

Counter c = new Counter()

c.x = 5;

Variable c will be created somewhere in memory that will contain reference (address) of the value x i.e. 5 that is created somewhere else in the memory. See the figure.

If we create another object e.g. Counter c2 = c; c2 will point to the same address of value x.

If we modify c2 object e.g. c2.x =10, the modified value will be reflected for c object also. As there is only one location of value x that are shared by both the object c and c2.