C# Data Types Quiz

Data Types in C#

• Two primary categories: value types and reference types.
• Value types hold their data directly, while reference types store a pointer to the data's memory location.

Value Types

• Examples of value types include struct.
• Each value type has its own memory allocation, holding the actual data.

Reference Types

• Example of reference types includes class, interface, and delegate.
• They are stored in the heap and contain a pointer to the actual data's memory location.

Strings in C#

• Strings are immutable, meaning once created, their contents cannot be modified.
• Strings are considered reference types as they do not hold the data directly within their own memory allocation.

Records in C#

• Records can be either value types (as structs) or reference types (as classes).
• They provide a way to define immutable data structures.

Memory Allocation Differences

• Value types are typically allocated on the stack, while reference types are allocated on the heap.
• Value types contain the actual data; reference types contain a reference to that data's location.

Modification of Strings

• Strings in C# cannot be modified after creation due to their immutable nature.
• Any "modification" results in the creation of a new string instance.

Arrays in C#

• Arrays are classified as non-primitive types and are considered reference types.
• Although they may behave similarly to value types in syntax, they store references to their elements in the heap.

Test your knowledge on the main categories of data types in C#. This quiz covers fundamental concepts, including value types, reference types, and their characteristics. Perfect for beginners and those looking to refresh their understanding of C#.