C programming file handling exercises

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Please use ide. Load Comments. What's New. Most popular in C Language. Most visited in C Programs. If the file is not present in the current directory, the program will create a new file and open it for writing in binary. If we open a file that contains some text in it and write something, the contents will be overwritten.

This mode cannot create a new file and open returns NULL, if we try to create a new file using this mode. If the file is not present in the current directory, the program will create a new file and open it for reading and writing.

If the file is not present in the current directory, the program will create a new file and open it for reading and writing in binary mode. If we open a file that contains some text in it, the contents will be overwritten. If the file is not present in the current directory, the program will create a new file and open it for reading and writing in binary. We can read content of a file in c using the fscanf and fgets and fgetc functions. All are used to read contents of a file. The fscanf function is used to read character set i.

It returns the EOF, when all the content of the file are read by it. The fgetc function in C is used to return a single character from the file.

It gets a character from the file and returns EOF at the end of file. We can write data to a file in C using the fprintf , fputs , fputc functions.

All are used to write contents to a file. The fputf function in C can be used to write to a file. It is used to write a line character line to the file. The fclose function is used to close the open file.