What are the different methods of opening a file? Explain in brief. Differentiate between fwrite() and fput() functions. How can the end of a file be detected? Explain in brief. Write a program which...

What are the different methods of opening a file? Explain in brief.

Differentiate between fwrite() and fput() functions.

How can the end of a file be detected? Explain in brief.

Write a program which counts the number of record in a given file.

Give suitable declarations for the following files:

a. A file containing components where each component consists of the following information:

b. A text file called Book.