capitalize_character_array.cpp

#include<iostream> // for toupper()
#include<cstring> // for strlen()

using namespace std;

int main() {
    char ch[] = "Character Array";
    
    // get the length of the
    int len = strlen(ch);
    
    cout << ch << "\n";
    
    // loop through the array and use toupper() on each character.
    for (int i = 0; i < len; i++) {
        ch[i] = toupper(ch[i]);
    }
    
    cout << ch << "\n";
    
    return 0;
}