DATATYPE IN C# CSHARP.net

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C# has several built-in datatypes that specify the size and type of data. The main datatypes are integral (int, long, etc.), floating point (float, double), character (char, string), and other types like boolean and datetime. Integral types store integers of different sizes like byte, short, int. Floating point types store fractional values like float and double. Character types store character and string values. Other types include boolean to store true/false values and datetime for dates/times. The document provides details on the range and default values of common C# datatypes.

Datatypes in C# (CSharp).net
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• It specifies size of the data& type of the data
• syntax:
• datatype var=value;
• int i=100;
• string s="sireesh";
• float f=121554.6f;
• Datatypes are classified into 4 types
• 1.integral datatypes
• 2.floating datatypes
• 3.character datatypes
• 4.other datatypes
• 1.integral datatypes: sbyte, byte, short, ushort, int, uint, long, ulong, char etc
• Byte = 1 byte(8 bites-0-255)
• int = 4 bytes
• Short = 2 bytes
• long = 8 bytes

• 2.floating datatypes: float, double, decimal datatypes etc...
• float=4 bytes
• double=8 bytes
• decimal=16 bytes
• 3.character datatypes: char, string datatypes...
• char=2bytes
• ascii values(A----Z)(65......90)
• string =16 bytes
• 4.other datatypes:
• boolean, datetime datatype etc...
• Boolean = 1 byte=true/false
• Datetime = 12 bytes

Type Represents Range Default Value
bool Boolean value True or False False
byte 8-bit unsigned integer 0 to 255 0
char 16-bit Unicode character U +0000 to U +ffff '0'
decimal 128-bit precise decimal values with 28-29
significant digits
(-7.9 x 10
28
to 7.9 x 10
28
) / 10
0 to 28
0.0M
double 64-bit double-precision floating point type (+/-)5.0 x 10
-324
to (+/-)1.7 x 10
308
0.0D
float 32-bit single-precision floating point type -3.4 x 10
38
to + 3.4 x 10
38
0.0F
int 32-bit signed integer type -2,147,483,648 to 2,147,483,647 0
long 64-bit signed integer type -9,223,372,036,854,775,808 to
9,223,372,036,854,775,807
0L

sbyte 8-bit signed integer type -128 to 127 0
short 16-bit signed integer type -32,768 to 32,767 0
uint 32-bit unsigned integer type 0 to 4,294,967,295 0
ulong 64-bit unsigned integer type 0 to 18,446,744,073,709,551,615 0
ushort 16-bit unsigned integer type 0 to 65,535 0

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30cSireesh K

This document discusses delegates in C#, which are similar to function pointers in C/C++. Delegates allow methods to be passed as arguments and stored for later invocation. The document explains that delegates store references to methods, can reference static or instance methods, and are type-safe. It also covers declaring delegates, instantiating delegates by storing method references, and using single-cast versus multi-cast delegates which can store references to multiple methods and invoke them in sequence.

29cSireesh K

This document discusses various types of polymorphism in C#, including inheritance, base and derived classes, single inheritance, multi-level inheritance, hierarchical inheritance, and aggregation. It provides examples of each type of inheritance using C# code. Single inheritance allows a derived class to inherit properties and methods from one base class. Multi-level inheritance involves inheriting from another inherited class. Hierarchical inheritance involves inheriting from a single base class but having multiple derived classes. Aggregation represents a "has-a" relationship between classes.

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DATATYPE IN C# CSHARP.net

1. Datatypes in C# (CSharp).net Brought to you by www.SiryMedia.in

2. • It specifies size of the data& type of the data • syntax: • datatype var=value; • int i=100; • string s="sireesh"; • float f=121554.6f; • Datatypes are classified into 4 types • 1.integral datatypes • 2.floating datatypes • 3.character datatypes • 4.other datatypes • 1.integral datatypes: sbyte, byte, short, ushort, int, uint, long, ulong, char etc • Byte = 1 byte(8 bites-0-255) • int = 4 bytes • Short = 2 bytes • long = 8 bytes

3. • 2.floating datatypes: float, double, decimal datatypes etc... • float=4 bytes • double=8 bytes • decimal=16 bytes • 3.character datatypes: char, string datatypes... • char=2bytes • ascii values(A----Z)(65......90) • string =16 bytes • 4.other datatypes: • boolean, datetime datatype etc... • Boolean = 1 byte=true/false • Datetime = 12 bytes

4. Type Represents Range Default Value bool Boolean value True or False False byte 8-bit unsigned integer 0 to 255 0 char 16-bit Unicode character U +0000 to U +ffff '0' decimal 128-bit precise decimal values with 28-29 significant digits (-7.9 x 10 28 to 7.9 x 10 28 ) / 10 0 to 28 0.0M double 64-bit double-precision floating point type (+/-)5.0 x 10 -324 to (+/-)1.7 x 10 308 0.0D float 32-bit single-precision floating point type -3.4 x 10 38 to + 3.4 x 10 38 0.0F int 32-bit signed integer type -2,147,483,648 to 2,147,483,647 0 long 64-bit signed integer type -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 0L

5. sbyte 8-bit signed integer type -128 to 127 0 short 16-bit signed integer type -32,768 to 32,767 0 uint 32-bit unsigned integer type 0 to 4,294,967,295 0 ulong 64-bit unsigned integer type 0 to 18,446,744,073,709,551,615 0 ushort 16-bit unsigned integer type 0 to 65,535 0

6. For more understanding visit our c# program example playlist in our channel SIRYMEDIA Or Click below links in description

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DATATYPE IN C# CSHARP.net

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