Predefined Characters in C Type. Please make sure the program compiles thanks :) // This program reads one character from the keyboard and will // - convert it to uppercase, if it is lowercase // - convert it to lowercase, if it is uppercase // - display a message, if it is not a letter of the alphabet #include #include using namespace std; int main() char c coutc if (isalpha(c)) //check to see if it is a letter of alphabet if (isupper(c))//check to see if it is uppercase cout Solution #include #include using namespace std; int main() { char c; cin.get(c); //cin.get() input the character which can be of any type if(isalpha(c)) { if(isupper(c)) { cout<<\"Your character \"<.