Examples - while loops

#include <iostream.h>

int main ( )
{
    int count = 1;

    while ( count <= 10 )
    {
        cout << count << " " ;
        count++;
    }

    return 0;
}

#include <iostream.h>
#include <iomanip.h>

int main ( )
{
    int num;

    cout << "NUMBER SQUARE CUBE\n"
            << "________ ________ _____\n";

    num = 1;

    while ( num <= 11 )
    {
        cout << setw(3) << num << " "
        << setw(3) << num * num << " "
            << setw(4) << num * num * num <<endl;

        num++;
    }

    return 0:
}

#include <iostream.h>

int main ( )
{
    const int HIGHGRADE = 100;
    int num = 0;
    float grade, total, average;

    grade = total = average = 0.0;

    cout << "Please enter the quiz grades" << endl;
    cout << "When all grades have been entered, enter any number greater than 100" << endl;

    while ( grade <= HIGHGRADE )
    {
        total = total + grade; // Or total += grade;
        cout << "\nEnter a grade: ";
        cin >> grade;

        if ( grade <= HIGHGRADE )
            num++;
    }

    cout << "\nThe total of the grades is " << total << " and " << num
            << " students took the quiz\n";

    if ( num == 0 )
        cout << "No grades were entered, unable to compute an average grade" << endl;
    else
        cout << "The quiz average is " << total/num << endl;

    return 0;
}