What are the common data types in c#

Common Data Types in C

#C# provides a variety of data types for storing different types of variables such as numbers, text, dates, and Boolean values. These data types can be divided into the following categories:

Value types

Value types store data directly in variables, including:

• Integer types (int, long, short): Store integers
• Floating point numbers (float, double): Store floating point numbers
• Character(char): Store a single character
• Boolean(bool): Store true(true) or false(false) value
• Enumeration (enum): Defines a set of named constants

Reference type

Reference type stores a reference to an object stored in heap memory , including:

• Class(class): Custom data structure
• Structure(struct): Lightweight value type
• Array(array): Stores a collection of values ​​of the same type
• String(string): Stores text
• Exception: Indicates an error or abnormal situation
• Interface(interface): Defines a set of methods for the class to implement

Untyped

The var keyword allows the definition of untyped variables, and the compiler will automatically infer the variable type.

Choose the right data type

Choosing the right data type is critical to optimizing code performance and avoiding errors. Data types should be selected based on the following guidelines:

• Storage size: Consider the maximum possible value and memory footprint of the data.
• Performance: Value types are generally faster than reference types.
• Precision: Floating point numbers may have limited precision.
• Purpose: Select the data type that matches the data purpose. For example, booleans are used for true/false values, while enums are used for a limited range of options.

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