2. Introduction to data types in C/C++

Data Types in C/C++

  C/C++ supports many data types. Out of all of these three are main.

i)  Integer

ii) Float

iii) Character

i) Integer 

     Integer data type is used used to store simple numeric values which excludes decimal point. it is a 16 bit data type. 

Integer is of two types signed and unsigned integer

In signed mode it can store values ranging from -32768 to 32767. the keyword used to create signed integers is int   the type specifier for signed integer is %d

In un-singed mode  it can store values ranging from 0 to 65535. the keyword used to create unsigned integers is unsigned int. The type specifier for signed integer is %u.

ii) Float 

        Float data type is used to store simple numeric values but with decimal point only. it is 32 bit data type. Type specifier for Flaot variable is %f. The keyword used to create float variables is float

iii) Character

       Character variables are used to store single single character at a time. The keyword used to create Character type variables is char. Type specifier for character type variable is %c.

Some Examples of Integer, Float and Character type variable declaration

int a;

int a,b,c;

int year,years,cou,n;

float amt,length,bredth;

float amount,roi;

char ch;

char em;

Assignment statement

Assignment statement is used to store values in variables. General syntex for assignment statement is 

variable =  variable | constant | expression

i.e.

a=10;

b=20;

c=a+b;

d=c;