C stdio: can fprintf be used to display output on the screen? If yes, how would you direct output to the console?

Difficulty: Easy

Correct Answer: Yes

Explanation:

Introduction / Context:fprintf writes formatted text to a specified stream. This question examines whether the console is just another stream and how to use fprintf for screen output.

Given Data / Assumptions:

  • The program is a typical console application.
  • Standard streams stdout and stderr are available.

Concept / Approach:

Yes. The console is represented by standard output streams. Writing to stdout or stderr sends text to the terminal by default. fprintf(stdout, ...) is equivalent to printf(...); fprintf(stderr, ...) writes error messages that bypass buffering in some environments.

Step-by-Step Solution:

1) Include <stdio.h>. 2) Use fprintf(stdout, "Hello\"); to print to the screen. 3) Optionally, use fprintf(stderr, "Error\"); for diagnostics.

Verification / Alternative check:

Replacing printf with fprintf(stdout, ...) produces the same console output under normal conditions.

Why Other Options Are Wrong:

No: Incorrect because the console is accessible via the standard streams.

Common Pitfalls:

  • Forgetting that streams can be redirected: stdout may go to a file or pipe depending on the shell.
  • Assuming only printf can print to the console.

Final Answer:

Yes

More Questions from Library Functions

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion