Question: You can use the getchar() function in C to get character input from the user through the keyboard. This function stops the execution of the

You can use the getchar() function in C to get character input from the user through the keyboard. This function stops the execution of the program and waits for the input from the user.The getchar() function has the type int and does not require an argument. It returns the ASCII-Code (cf. Appendix B) of the key that has been pressed on the keyboard.

a. Write a program, that asks the user to input a digit between 0 and 9.

b. Test the input from the user and display an error message if the returned value is not a digit. The program should then be terminated. If the test is successful, the program should print the input value on the computer screen.

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