C# Data Types

Reference Types

The reference types include a reference to the variables rather than the actual data stored in the variables. They refer to a memory location, in other words. The reference types can refer to a memory location by using several variables. If one of the variables modifies the data in the memory location, the other variable instantly updates its value. Object, dynamic, and string are examples of built-in reference types.

Object Type

In the C# Common Type System, the Object Type is the ultimate foundation class for all data types (CTS). The System is an alias for Objects—object type. Values of any other types, value types, reference types, predefined or user-defined types, can be assigned to object types. However, type conversion is required before allocating values. Boxing is converting a value type to an object type, and unboxing is the process of converting an object type to a value type.

Dynamic Type

The dynamic data type variable can hold any value. Run-time type verification is performed for certain types of variables. Dynamic types are identical to object types, except that type verification for object type variables occurs at compile-time, whereas it occurs at run time for dynamic type variables.

String Type

You can assign any string value to a variable using the String Type. The string type is just another name for System. Class for strings. It comes from the object type. String literals in two forms: quoted and @quoted, can be used to assign a value to a string type. Class, interface, and delegate are examples of user-defined reference types. These sorts will be discussed in a later chapter.

Pointer Type

The variable value's memory address will be stored in the Pointer Data Types.

We use the symbols ampersand (&) and asterisk (*) to access the pointer details.

(&) ampersand: It's called the Address Operator. It is used to determine a variable's address.

(*) asterisk: Indirection Operator is another name for it. It's used to find out what an address's value is.

The syntax for declaring a pointer type is −

type* identifier;

Also see, Ienumerable vs Iqueryable

Recommended Topic -  singleton design pattern in c#

Frequently Asked Questions

What distinguishes C# from C++?

C++ is an intermediate-level language that extends C with object-oriented capabilities, whereas C# is a high-level language. C++ compiles programs to Machine Codes, whereas C# compiles programs to CLR or Common Language Runtime.

C++ versus C#, which is faster?

C++ code is substantially faster than C# code, making it a superior choice for applications that require high speed. Your network analysis software, for example, may require C++ code, but performance is unlikely to be an issue for a conventional word processing application written in C#.

What is the purpose of C#?

What is the purpose of C#? C# may be used to construct various programs and applications, including mobile apps, desktop apps, cloud-based services, websites, enterprise software, and games, just like other general-purpose programming languages. There are numerous games.

Conclusion

Let us brief out the article.

Firstly, we saw what's C# and its different data types, digging deeper into each of them. Lastly, some of the key differences between C and C#, the use of C#, and many more. That's all from the article. I hope you all like it.

To study more about data types, refer to Abstract Data Types in C++.

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Happy Learning, Ninjas!