Question

Which function would you use if a single key were to be received through the keyboard?

Answer 1

In such conditions where we want to store or take input of just 1 character from the keyboard Un-formatted functions are used:

1. getch() - It takes only 1 character input, but does not echo/display that character on the screen.

2. getche() - It takes only 1 character input, can echo last character when pressed alt + f5

3. getchar() - It takes only 1 character input, we have to press enter to store that character in the memory.

Answer 2

Some of the functions such as getch(), getche(), getchar() are used were to be received through the keyboard.  

Explanation:

• getch() – Here, this function is used to read (get) the single character from the input device (keyboard) without echoing. It will not display the input character and this function does not return key after input.  

• getche() – This is also used for getting the single character from the standard input device (keyboard) with echoing. It displays the input character and it does not return key after the input.

• getchar() – This is also used for getting the single character from the standard input device (keyboard) with echoing. It displays the input character and it does not return key after the input.