Data Types
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Data Types
In C#, data types define the type of data that a variable can hold. C# provides several built-in data types, including:
- Numeric types: These include integer types (sbyte, byte, short, ushort, int, uint, long, and ulong) and floating-point types (float, double, and decimal). Numeric types can be used to represent whole numbers, real numbers, and decimal numbers, depending on the type.
- Boolean type: This type (bool) can hold a value of either true or false.
- Character type: This type (char) represents a single Unicode character.
- String type: This type (string) represents a sequence of Unicode characters.
- Object type: This type (object) is a reference type that can hold any type of value.
Here’s an example of how to declare and initialize a variable of each of these data types:
sbyte myByte = 127;
short myShort = 32000;
int myInt = 2000000000;
long myLong = 9000000000000000000L;
float myFloat = 3.14159f;
double myDouble = 3.141592653589793;
decimal myDecimal = 1000.00m;
bool myBool = true;
char myChar = 'A';
string myString = "Hello, world!";
object myObject = new object();
In this example, we’re declaring variables of each of the built-in data types and initializing them with some example values.
It’s important to choose the right data type for each variable based on the type of data it will hold. Using the wrong data type can result in unexpected results or errors in your code. For example, if you try to store a large number in a variable of type byte (which can only hold values from 0 to 255), you will get an overflow error at runtime.
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