DATA TYPES IN C

DATA TYPES IN C

Data Types are used to declare a variables or functions of different types. The variables are use to store the data. The datatypes are to see how much data will occupies in storage There are 4 data types in c

• INT 
• FLOAT
• CHAR
• DOUBLE

• 1) Int: integers are the whole numbers that have positive and negative values and no decimal values  ex:1,-3,0
• int is also a keyword in c to declare the variables  
• ex: int a;
• here a is a variable 
• The size of int is 2 bytes in (32 bit ) 4 bytes in (64 bit) operating systems
• The range of integer data type is -32,768 to 32,767

2)  Float: Float variables can hold fractional and real numbers such as 23.54,58.2.

we can use a keyword float to declare the fractional values in c

ex: float bill;

here float is a keyword and bill is variable.

The size of float data type is 4 bytes. its range is1.2E-38 to 3.4E+38

  

3) char: Char is a datatype to use to declare character data

ex:char name=k ;

here name is a variable and the value of name is k.

The size of char data type is 1 byte.

4) double:

The size of (Double precision data type) is 8 bytes.

The keyword double is used to declare the real numbers 

ex:double book price; 

The range is 1.7E-308 to 1.7e +308