[Resolved] Input valid data?

[The Hobo]

How can you prevent errors from occuring when a user inputs wrong information? Lets say I ask for an integer value (like below) and they put 'a'? It then causes a major spaz in the program.

Example Code:

#include <iostream>
using namespace std;

int main() {
    
    int num;

    cout << "Enter an Integer: ";
    cin >> num;
    
    while (num < 1 || num > 5) {
        system("CLS");
        cout << "Enter an INTEGER: ";
        cin >> num;
    }

    cout << endl << num << endl << endl;

    return 0;
}

How can this be prevented?