switch menu in C - c

Question

I'm trying to use a menu in this C program but I keep getting an error:
3.c: In function 'main':
q3.c:99:3: error: expected declaration or statement at end of input
}
^
q3.c:99:3: error: expected declaration or statement at end of input
The code
#include <stdio.h>
int userInput();
void printList();
void editStud();
void delStud();
void addStud();
struct studentRec
{
char name[25];
char init[25];
char pNu[25];
int studNum;
float bBalance;
};
int main()
{
//no constants
struct studentRec students;
FILE *fp,*fw,*ft;
int sel = 1; //select number for menu
while(userInput)
{
sel = userInput();
switch(sel)
case1:
printList();
break;
case2:
editStud();
break;
case3:
delStud();
break;
case4:
addStud();
break;
case0:
break;
{
}
int userInput()
{
int choice;
printf("===========================\n");
printf("(1). View all students\n");
printf("(2). Edit student details\n");
printf("(3). Delete student\n");
printf("(4). Add new student\n");
printf("(0). Exit\n");
printf("===========================\n\n");
printf("Enter your choice Please\n");
scanf("%d", &choice);
return choice;
}
void printList()
{
printf("*Prints list*\n");
}
void editStud()
{
printf("*edits entry*\n");
}
void delStud()
{
printf("*deletes entry*\n");
}
void addStud()
{
printf("*adds entry\n");
}
Thanx for all the responses, what I meant to do:
.
.
.
int userInput();
void printList();
void editStud();
void delStud();
void addStud();
.
.
.
int sel = 1; //select number for menu
while(sel)
{
sel = userInput();
switch(sel)
{
case 1:
printList();
break;
case 2:
editStud();
break;
case 3:
delStud();
break;
case 4:
addStud();
break;
case 0:
break;
default:
printf("That is not a valid selection!\n");
}
}
.
.
.
errors were:
1. incorrect while braces
2. used while(userInput) instead of while(sel)
3. no space between case and number

Answer 1

what is case1? My only guess is that you mean to compare against 1, in which case you'd have to leave a space between the keyword case and the actual case value. Here's how your switch case should look like:
switch (sel) {
case 1:
printList();
break;
case 2:
editStud();
break;
case 3:
delStud();
break;
case 4:
addStud();
break;
case 0:
break;
}

Answer 2

1) Your braces inside while is meaningless (the one before ending while brace)
2) your switch statement does not have enclosing braces.
3) Also, there should be a space between case keyword and the switch input
Correct way is
while(userInput){
sel = userInput();
switch(sel){
case 1:
printList();
break;
case 2:
editStud();
break;
case 3:
delStud();
break;
case 4:
addStud();
break;
case 0:
break;
}
}

Answer 3

Change:
case1:
to
case 1:
etc.
also a switch statement requires a starting { and an ending }.

Answer 4

After a Switch statement, you want a open brace.
switch(sel) {
case is a keyword, which means that you probably want whitespace around it.
case 1:
case 2:
...
You have an open brace where you probably want a close brace. The number of open braces should match the number of close braces.
}
Your while statement is quite odd. You probably want to do something else with that...
So, main() should actually look like:
int main()
{
struct studentRec students;
FILE *fp,*fw,*ft;
int sel = 1; //select number for menu
while(true)
{
sel = userInput();
switch(sel) {
case 1:
printList();
break;
case 2:
editStud();
break;
case 3:
delStud();
break;
case 4:
addStud();
break;
case 0:
break;
}
}
}