What are data types in C#? Explanation of the four data types in C#

#The C# language comes with a set of basic data types. These data types are used to construct values ​​used in applications. Let's explore the basic data types available in C#. For each example, we will only modify the main function in the Program.cs file. [Recommended reading: C# Video Tutorial]

1. Integer

The Integer data type is used to process numbers. In this case, the number is an integer like 10, 20 or 30. In C#, the data type is represented by the Int32 keyword. Below is an example of how to use this data type. In our example, we will define an Int32 variable called num. We will then assign an Integer value to the variable and display it accordingly.

static void Main（string [] args） 
  {
   Int32 num = 30;
   Console.Write（NUM）;  
   
   Console.ReadKey（）;
  }
 }
}

Code description

Int32 data type to declare an Integer variable named num, and then assign the variable a value of 30. Finally, the console.write function is used to display numbers to the console.

If the above code is entered correctly and the program executes successfully, the following output will be displayed. Output:

# From the output, you can clearly see that the Integer variable named num is displayed in the console

2. Double precision float Point type

If in this case the number is an integer like 10.11, 20.22 or 30.33. In C#, data types are represented by the keyword "Double". Below is an example of this data type, we will define a double variable called num. We will then assign Double value to the variable and display it accordingly.

{ 
  static void Main（string [] args） 
  {
   double num = 30.33;
   Console.Write（NUM）; 
   
   Console.ReadKey（）;
  }
 }
}

Specify the double data type to declare a double type variable named num. Then assign a value to the variable 30.33

Output:

3. Boolean value

Boolean data type is used for processing Boolean values ​​of true and false. In C#, data types are represented by the Boolean keyword. We will define a boolean variable called "status". We will then assign a boolean value to the variable and display it accordingly.

 { 
   static void Main(string[] args) 
   {
    Boolean status=true;
    Console.Write(status);
    
    Console.ReadKey();
   }
  }
}

Specify the Boolean data type to declare a Boolean variable named "status". Then assign true/false to the variable and output:

4 String

String data type is used to process String values. In C#, data types are represented by the keyword "String".

 {
  static void Main（string [] args）
  {
   String message =“hello”;
   Console.Write（message）;
   
   Console.ReadKey（）;
  }
 }
}

Specify the String data type to declare a string variable named message. Then assign the value "Hello" to the variable. The console.write function is used to display a string value to the console, output:

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