Data types| Output stream| Variables

 

source code: 

#include<iostream> using namespace std; /* Data  Types : 1. built in data type:int ,char ,long int ,double float,float. 2. user defined data type: classes,structures,union,array,etc.   */ int main() {     int i=6,p; //integer values     float q; //float values i.e, decimal     char s; //character values ,like aplhabets.     cout<<"the value contain by the variables: i "<<i;     //cin>> operator use for taking input from users.     cout<<"\n Please enter the value for q : "<<endl;     cin>>q;     cout<<"the value of q: "<<q;     return 0; }