Trying switch case statement need help making it work

Question

#include <iostream>
#include <string>
using namespace std;

int main()
{

char stand;
char F, J, S;
cin >> stand;
switch (stand) {
case F:
cout << "first year";
break;
case S:
cout << "sohmore senior";
break;
case J:
cout << "junior";
break;

default:
}

return 0;
}

Answer 1

#include<iostream>
#include<string>
using namespace std;

int main()
{

char stand;
cin >> stand;
switch (stand) {
case 'F':
cout << "first year";
break;
case 'S':
cout << "sohmore senior";
break;
case 'J':
cout << "junior";
break;

default:
cout<<"default";
}

return 0;
}

Answer 2

Always put a character in single quotes while writing in switch case.
And also use a default statement if you are declaring a default case or either don't declare any default case. Default statement is not compulsory.

Answer 3

thathank you sir wow