I did a sample exercise in which to calculate the average hourly pay rate. Asked the user to enter the weekly pay (in euros as €12.51) and the weekly hours. These *had* to be read in as floating points. The output *had* to be in euro and cent separately.
Could you guys comment on whether the technique below is elegant enough or is cumbersome? This was really a test of playing with conversions and casts.
Just look at the *internal calculations* section and say whether it could be better done. I'm fairly happy with it - I'm not interesting trapping all cases at the moment - but want to see if this is the correct approach to get the cents and euros.
Again I really appreciate your kind comments.
double weekly_pay = 0.0;
double weekly_hours = 0.0;
double average_pay_per_hour = 0.0;
int euros = 0;
int cents = 0;
/* prompt user for weekly pay in euro and weekly hours worked */
printf("\nThis program will calculate your average hourly pay rate.");
printf("\nPlease enter your weekly pay in euro: ");
printf("Please enter your weekly hours worked: ");
/* internal calculations */
average_pay_per_hour = weekly_pay / weekly_hours;
euros = (int)average_pay_per_hour; /* keep the euro, knock the cent */
cents = (int)(average_pay_per_hour * 100) - euros*100; /* get cents */
/* display results */
printf("\nYour average hourly pay rate is %d euro and %d cents.\n",euros, cents);
This program will calculate your average hourly pay rate.
Please enter your weekly pay in euro: 105.1
Please enter your weekly hours worked: 10
Your average hourly pay rate is 10 euro and 50 cents