The document explains memory allocation in C#, distinguishing between value types and reference types. Value types store data directly in their own memory space on the stack, while reference types contain a pointer to a memory location in the heap. Key examples of value types include int and float, while reference types include strings and classes.

1. VALUE & REFERENCE DATA
TYPES
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2. CONTENTS
• STACK AND HEAP
• VALUE TYPE
• REFERENCE TYPE

3. STACK AND HEAP
• In c#, there are two ways to allocate the space in memory, i.e.
either on stack or heap memory, based on the value
type or reference type parameters
• We will be looking at the two different parameters mentioned
above and how they are stored in the memory with examples.

4. VALUE TYPES
• Following are the different data types which will fall under value
type in c# programming language.
int long char double float
decimal byte ulong ushort sbyte
struct uint ushort enum bool

5. VALUE TYPES
• In c#, a data-type is a value type if it holds the value of
variable directly on its own memory space.
• value types use stack memory to store the variables
values.
For example, if we define and assign a value to the
variable like int number = 45; then the system will use the
same memory space of variable ‘number’ to store the
value ‘45’.

6. REFERENCE TYPES
• Reference types contain a pointer which points to other memory
location that holds the data in the heap.
• The reference types won’t store the variable value directly in its
memory instead, it will store the memory address of the variable
value in the stack to indicate where the value is being stored.
• For example, if we define and assign a value to the variable like
string name = ”Boluwatife Ayomide";
then the system will store the variable value “Boluwatife Ayomide”
in one location (the heap) and the variable "name" in another
location (the stack) along with the memory address of the variable
value.

7. REFERENCE TYPES
Following are the different data types which will fall under reference
type in c#.
• String
• Class
• Delegates and
• Arrays

8. STACK AND HEAP CONTD…..
• Stack is used for static memory allocation and heap for dynamic
memory allocation, both stored in the computer's RAM.

9. THE END
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