<iostream.h>
The basic two basic functions that are define in iostream.h are "cin" and "cout"cin is used with >> operator because we give input to the program.
cout is used woth << operator because we get ouput using cout<< function.
Mostly begginer used this function , many other alternative function are avilable like getcin(),etc.
but these are easy to use soo here we describle how to use these function.
here you just put it in the rogram . we will more briefly describe function.
now here
int a;
we posted all the data types in previous post .
so int is data type (integer) int a means the variable "a" take
some memory to store any integer in a . we also assian value to a here .
int a=5;
now in computer memory a=5 is stored .
cout<<"text"
cout is used to output the strings or any character written between " and ".
cout also perform arthemtic operation like subtration ,addtion etc .
General syntax is
cout << "the result is =" a+b ;
here a and b are defined in computer momery .
cin>> verible_name
if we not assian any value to a , then we get value of from user by using cin function. we can get muliple values of variable by using comma ,. cin>>a,b,c;
Result
if and else statement is described in previous posts