C code, what am I missing for this control statement program? - c

Question

I am working on a program. This is what I am attempting to achieve;
The program should present a menu of pay rates from which to choose. Use a switch to select the pay rate. The beginning of a run should look something like this:
If choices 1 through 4 are selected, the program should request the hours worked. The program should recycle until 5 is entered. If something other than choices 1 through 5 is entered, the program should remind the user what the proper choices are and then recycle. Use #defined constants for the various earning rates and tax rates.
This is the code I have so far, what am I missing?;
#include <stdio.h>
#include <stdlib.h>
int main()
{
int choice, hour;
float taxe, total;
printf("****************************************************************\n");
printf("\nEnter the number corresponding to the desired pay rate or action");
printf("\n1)$8.75/hr");
printf("\n2)$9.33/hr");
printf("\n3)$10.00/hr");
printf("\n4)$11.20hr");
printf("\n5)Quit");
printf("**********************************************************\n");
scanf("%d", &choice);
printf("Please enter number of hours: ");
scanf("%d", &hour);
switch(choice){
case 1:
total = 8.75* hour;
break;
case 2:
total = 9.33*hour;
break;
case 3:
total = 10.00*hour;
break;
case 4:
total = 11.20*hour;
break;
case 5:
break;
return 0;
}
}

Answer 1

what am I missing?
What you are missing is the actual iteration.
The program should recycle until 5 is entered.
This means that you have to do all your work inside a loop, which will check each time if the value read is 5, which you need in order to stop iterating. You can use one of the following ways :
while loop:
scanf("%d", &choice);
while (choice != 5)
{
....
switch(choice){
....
}
....
scanf("%d", &choice);
}
for loop:
for (scanf("%d", &choice); choice != 5; scanf("%d", &choice);)
{
....
switch(choice){
....
}
....
}
do-while loop:
do{
scanf("%d", &choice);
....
switch(choice){
....
}
....
}while(choice != 5);

Answer 2

You did'nt used a loop. It can't recycle until 5 entered.
After taking the choice, insert a while loop :
while(choice != 5){
and process normally your switch, ignoring the 5 value, adding a "default" case if another value is entered.
If you want the total program to recycles, use a do{} while(); starting on your printf, ending afgter the switch.

Answer 3

you have yo use do while loop here like below
do
{
clrscr();
printf("****************************************************************\n");
printf("\nEnter the number corresponding to the desired pay rate or action");
printf("\n1)$8.75/hr");
printf("\n2)$9.33/hr");
printf("\n3)$10.00/hr");
printf("\n4)$11.20hr");
printf("\n5)Quit");
printf("**********************************************************\n");
scanf("%d", &choice);
printf("Please enter number of hours: ");
scanf("%d", &hour);
switch(choice){
case 1:
total = 8.75* hour;
break;
case 2:
total = 9.33*hour;
break;
case 3:
total = 10.00*hour;
break;
case 4:
total = 11.20*hour;
break;
case 5:
break;
default :
printf("\n please enter proper choice");
getch();
}
}while(choice !=5);