data types in c#

// -------DATA TYPES ------- // sbyte myNum = 1; // Smallest range of integer numbers uint myNum = 3; // Only positive integer numbers short myNum = 4; // Short range of integer numbers int myNum = 5; // Integer (whole numbers) long myNum = 10; // Biggest range of integer numbers float myFloat = 1.2f; // Smallest range of floating point numbers double myDoubleNum = 5.99; // Big range of floating point numbers decimal myDecimalNum = 2.2M; // Biggest precision in floating point numbers char myLetter = 'D'; // Character string myString = "Hello!" // Strings bool myBool = true; // Boolean

short s1 = -32768; short s2 = 32767; short s3 = 35000;//Compile-time error: Constant value '35000' cannot be converted to a 'short' ushort us1 = 65535; ushort us2 = -32000; //Compile-time error: Constant value '-32000' cannot be converted to a 'ushort' Console.WriteLine(Int16.MaxValue);//32767 Console.WriteLine(Int16.MinValue);//-32768 Console.WriteLine(UInt16.MaxValue);//65535 Console.WriteLine(UInt16.MinValue);//0

int myNum = 5; // Integer (whole number) double myDoubleNum = 5.99D; // Floating point number char myLetter = 'D'; // Character bool myBool = true; // Boolean string myText = "Hello"; // String

// ---------------- Value Type vs Reference Type ----------------------// // Data types are separated into value types and reference types. // Value types are either stack-allocated or allocated inline in a structure. // Reference types are heap-allocated. Both reference and value types are // derived from the ultimate base class Object // Aside from serving as the base class for value types in the .NET Framework, // the ValueType structure is generally not used directly in code. However, // it can be used as a parameter in method calls to restrict possible // arguments to value types instead of all objects, or to permit a method to // handle a number of different value types. ValueType helps prevent reference // types from being passed to methods.

Data types in c-sharp

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					''
decimal		128-bit precise decimal values 			(-7.9 x 1028 to 7.9 x 1028) 		0.0M
			with 28-29 significant digits			/ 100 to 28
double		64-bit double-precision floating 		(+/-)5.0 x 10-324 					0.0D
			point type								to (+/-)1.7 x 10308
float		32-bit single-precision floating 		-3.4 x 1038 to + 3.4 x 1038			0.0F
  			point type
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 			0L
  													to 9,223,372,036,854,775,807
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

Posted by: Guest on November-08-2021

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