Switch case operation in c

Todaye we have parcticed on switch case operation in c.
here is the code block:

#include <stdio.h> main() {    char option;   printf("Write your option(Y/N): ");     scanf("%c",&option);  switch(option)  {     case 'Y':          printf("Yes, we have a class on friday\n");          break;     case 'N':         printf("No, we don't have any class on friday\n");         break;     default:          printf("write the correct option\n");          break;    } system("PAUSE"); return 0; }