INTERVIEW QUESTIONS MICROSOFT DOTNET DETAILS

Question: What are value types and reference types?

Answer: Value type - bool, byte, chat, decimal, double, enum , float, int, long, sbyte, short, strut, uint, ulong, ushort
Value types are stored in the Stack
Reference type - class, delegate, interface, object, string
Reference types are stored in the Heap

Value type - bool, byte, chat, decimal, double, enum , float, int, long, sbyte, short, strut, uint, ulong, ushort
Value types are stored in the Stack
Reference type - class, delegate, interface, object, string
Reference types are stored in the Heap
Source: CoolInterview.com

Value types stores the value of the variable,Reference type stores the memory address of the variable Source: CoolInterview.com

Value types directly contain their data which are either allocated on the stack or allocated in-line in
a structure.
For example, char, int, double etc.
Reference types store a reference to the value's memory address, and are allocated on the heap.
Reference types can be self-describing types, pointer types, or interface types.
For example, delegate, object, Integer class etc.

Variables that are value types each have their own copy of the data, and therefore operations on
one variable do not affect other variables.
Variables that are reference types can refer to the same
object; therefore, operations on one variable can affect the same object referred to by another
variable. Source: CoolInterview.com

value type stored in stack memory and they don't have garbage collection and tdon't have default values and contain direct values.

reference type stored in heap memory and access the garbage collection and it contain the defalut values and indirect values. Source: CoolInterview.com

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