question How do you open a file for writing in C

Programming

How do you open a file for writing in C?

A. fopen("file.txt", "r");
B. open("file.txt", "w");
C. fopen("file.txt", "w");
D. open("file.txt", "r");

'fopen' with "w" opens a file for writing in C.

What is the role of the 'strcpy' function in C?

A. Concatenate strings
B. Copy strings
C. Compare strings
D. Convert strings

What is the output of printf("%s", "Hello" + 1);?

A. Hello
B. ello
C. H
D. e

What does the 'sizeof' operator return for a pointer variable?

A. Size of the pointer
B. Size of the data type pointed to
C. Size of the memory allocated
D. Size of the address

What is the purpose of the 'strcat' function in C?

A. Concatenate strings
B. Copy strings
C. Compare strings
D. Convert strings

What is the purpose of the 'continue' statement in a loop?

A. Exit the loop
B. Skip to the next iteration
C. Restart the loop
D. Terminate the program

How do you open a file for writing in C?

A. fopen("file.txt", "r");
B. open("file.txt", "w");
C. fopen("file.txt", "w");
D. open("file.txt", "r");

What is the role of the 'static' keyword in C?

A. Define a constant
B. Declare a variable
C. Create a static function
D. Preserve variable value between function calls

Which of the following is a bitwise AND operator in C?

A. &&
B.
C. -
D. -

How do you declare a pointer in C?

A. int* ptr;
B. pointer ptr;
C. *ptr int;
D. ptr* int;

How do you include a header file in C?

A. #include "file.h"
B. include "file.h"
C. #include
D. include