Question

This is what I’m trying to do…

char input[4];
cin >> input;
cout << "Input[0]: " << input[0] << "Input[1]: " << input[1] << "Input[2]: " << input[2] << "Input[3] " << input[3]<< "Input[4] " << input[4] <<endl;

However, when I enter “P F” I get an output of this: Input[0]:P Input[1]: Input[2]:(A weird looking square with two zeros on top and a zero and 4 on the bottom) Input[3] Input[4]

Why do I get that weird character instead of F?

Answer 1

cin >> separates inputs by a space, hence when you enter P<space>F, only the P is accepted into input, and F is queued for the next cin >>.

Thus after that cin >> input line, your input will look like

   input[0] = 'P';
   input[1] = '\0';
// input[2] = garbage;
// input[3] = garbage;
// input[4] = buffer-overflow;

Perhaps you want to use cin.getline:

cin.getline(input, 4);
cout << ...;

(Or better, use std::string which has flexible string length.)