variables program

#include <iostream>

using namespace std;

int main() {

    cout << "hello world" << endl; //prints output "hello world", then moves down a line

    int i=2; //assigns value 2 to integer variable i

    cout << "i = " <<i<<endl; //outputs string "i = " followed by 2

    double a=3.3; //assigns double value 3.3 to variable a

    cout << "a = " <<a<<endl; //outputs string "a = " followed by 3.3

    int j = a*i; //assigns the product of 3.3 and 2 to integer value j. Also, it rounds down so the value of the integer j is 6.

    cout << "a*i = "<<j<<endl; // outputs string "a*i = " followed by a 6

    return 0; //exits the program

}

OUTPUT:

[cms-opendata@localhost src]$ ./a.out

hello world

i = 2

a = 3.3

a*i = 6