While & If loop expected error

Question

I need to write a program that would read in numbers from the keyboard, compute the average of the numbers, and display it. The sequence of numbers are to be terminated with a zero.

Here is my code:

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main()
{
    int count;
    double number, sum, average;

    count = 0;
    sum = 0;
    average = 0;

    cout << "\nEnter Number (0 to terminate): ";
    cin >> number;

    while(number! = 0.0)
    {
        sum = sum + number;
        count = count + 1;
        cout << "\nEnter Number: ";
        cin >> number;
    }
    if(count! = 0.0);
    {
        average = sum/count;
    }

    cout << "\nThe average of the" << count << "number is" << average << endl;
    return 0;
}

However, I am getting two errors:

expected ')'

and

if statement has empty body

If you want to share solution post an answer, don't put solutions in the question. Question posts are only for holding questions :) — BartoszKP, Nov 04 '16 at 15:00

score 1 · Answer 1 · answered Nov 04 '16 at 12:03

1

if(count! = 0.0);

Get rid of semicolon

answered Nov 04 '16 at 12:03

Saurav Sahu

13,038
6
64
79

score 1 · Answer 2 · answered Nov 04 '16 at 12:08

1

There are three errors:

The != operator is mis-spelled ! = in two places.
The if has a semicolon after the closing parentheses.

answered Nov 04 '16 at 12:08

unwind

391,730
64
469
606

score 0 · Answer 3 · answered Nov 04 '16 at 12:04

0

You have a semi-colon (;) right after the if statement. Remove it :)

if(count! = 0.0)

answered Nov 04 '16 at 12:04

Moo-Juice

38,257
10
78
128

score 0 · Answer 4 · answered Nov 04 '16 at 12:05

0

while(number! = 0.0) should be while(number != 0.0)

and

if(count! = 0.0) should be if(count != 0.0)

Note != is an operator but ! = is not - attention to the details!

answered Nov 04 '16 at 12:05

artm

17,291
6
38
54

score 0 · Accepted Answer · edited Nov 04 '16 at 12:15

Please do not insert any whitespaces between your comparators.

You wrote (number! = 0.0), but the correct one should be: (number != 0.0).

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main()
{
    int count;
    double number, sum, average;

    count = 0;
    sum = 0;
    average = 0;

    cout << "\nEnter Number (0 to terminate): ";
    cin >> number;

    while(number != 0.0)
    {
        sum = sum + number;
        count = count + 1;
        cout << "\nEnter Number: ";
        cin >> number;
    }
    if(count != 0.0)
    {
        average = sum/count;
    }

    cout << "\nThe average of the" << count << "number is" << average << endl;
    return 0;
}

While & If loop expected error

5 Answers5