Basic Data Types & Printf() Function C Programming Language

⇒ For video tutorial you can see below video:

BASIC DATA TYPES IN C LANGUAGE:

1.1. INTEGER DATA TYPE:

✔       Integer data type allows a variable to store numeric values.

✔         “int” keyword is used to refer integer data type.

✔         The storage size of int data type is 2 or 4 or 8 byte.

✔         It varies depend upon the processor in the CPU that we use.  If we are using 16 bit processor, 2 byte  (16 bit) of memory will be allocated for int data type.

✔         Like wise, 4 byte (32 bit) of memory for 32 bit processor and 8 byte (64 bit) of memory for 64 bit processor is allocated for int datatype.

✔         int (2 byte) can store values from -32,768 to +32,767.

✔         If you want to use the integer value that crosses the above limit, you can go for “long int” and “long long int” for which the limits are very high.

Note:                                                                                                                                                            ✔         We can’t store decimal values using int data type.                                                                  ✔         If we use int data type to store decimal values, decimal values will be truncated and we                 will get only whole                     number.                                                                                  ✔         In this case, float data type can be used to store decimal values in a variable.

1.2. CHARACTER DATA TYPE:

✔         Character data type allows a variable to store only one character.

✔         Storage size of character data type is 1. We can store only one character using character data type.

✔         “char” keyword is used to refer character data type.

✔         For example, ‘A’ can be stored using char datatype. You can’t store more than one character using char data type.

1.3. FLOATING POINT DATA TYPE:

Floating point data type consists of 2 types. They are,

⇒       float

⇒       double

1. FLOAT:

✔         Float data type allows a variable to store decimal values.

✔         Storage size of float data type is 4. This also varies depend upon the processor in the CPU as “int” data type.

✔         We can use up-to 6 digits after decimal using float data type.

✔         For example, 10.456789 can be stored in a variable using float data type.

2. DOUBLE:

✔         Double data type is also same as float data type which allows up-to 10 digits after decimal.

✔         The range for double datatype is from 1E–37 to 1E+37.

 How To Print message in c:

Program:
Printf(“Hello World”);

You can use \n for new line

And \t for tab space

Printf(“Hello world \n”);

Printf(“\t How are you all”);

Output :

Hello world

               ⭐ How are you all⭐

Thank you