C# Data Types

dtype_logo-300x110 In this chapter you will learn:

  • Different types of C# data types, their sizes and storing capacities
  • Difference between value types data types and reference type data types

C# is a strongly typed language. It means, that you cannot use variable without data types. Data types tell the compiler that which type of data is used for processing. Such as if you want to work with string value then you will have to assign string type variable to work with. C# provides two types of data types: Value types and Reference types.

A Value type data type stores copy of the value whereas the Reference type data types stores the address of the value. C sharp provides great range of predefined data types but it also gives the way to create user defined data types.


  • A complete detail of C# data types are mentioned below:

    Value Types:

    Data TypesSizeValues
    sbyte8 bit-128 to 127
    byte8 bit0 to 255
    short16 bit-32,768 to 32,767
    ushort16 bit0 to 65,535
    int32 bit-2,147,483,648 to 2,147,483,647
    uint32 bit0 to 4,294,967,295
    long64 bit-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
    ulong64 bit0 to 18,446,744,073,709,551,615
    char16 bit0 to 65535
    float32 bit-1.5 x 1045 to 3.4 x 1038
    double64 bit-5 x 10324 to 1.7 x 10308
    decimal128 bit-1028 to 7.9 x 1028
    boolTrue or false

     

    Reference Types:

     

    Data TypesSizeValues
    stringVariable length0-2 billion Unicode characters
    object

    Summary

    In this chapter you learned about different types of data types that C# uses. You also know about value type data types and reference type data types. In next chapter you will learn how to use all these data types in a program to creating a variable in C#.


    2 thoughts on “C# Data Types”

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