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Develop a simple subject registration system. The program requires user to enter student’s full
name, I/C number, matric number, subject code and subject name. Then the program will print out
all the data that has been entered on the screen.

What I have tried:

#include <stdio.h>

int main()
char name[30];
int icnum;
char matricnum;
char subcode;
char subname;

printf("\nEnter full name :");

printf("\nEnter ic number :");
scanf("%d", &icnum);

printf("\nEnter matric number :");
scanf("%s", &matricnum);

printf("\nEnter subject code :");
scanf("%s", &subcode);

printf("\nEnter subject name :");
scanf("%s", &subname);

printf("\nFull name :");
printf("\nIc number : %d", icnum);
printf("\nMatric number : %s", matricnum);
printf("\nSubject code : %s", subcode);
printf("\nSubject name : %s", subname );

Updated 5-Nov-21 1:23am

1 solution

Simple: you are reading data into a string - so the scanf expects and gets a pointer to a character. But the space you have allocated to that character is a single char value, so there is nowhere for more than one character or the string terminating null character to go!

Try allocating more space:
char matricnum[100];
printf("\nEnter matric number :");
scanf("%s", matricnum);
printf("\nMatric number : %s", matricnum);
And it should work.

Obviously, you will need to do the same for all other strings - but you probably worked that out already!

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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