question What does the sizeof operator return for a pointer variable

Programming

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

'sizeof' returns the size of the pointer variable.

Which method is used to read data from the keyboard in Java?

A. read()
B. input()
C. System.in.read()
D. Scanner.next()

How do you create an object of a class in Java?

A. Object obj = new Object();
B. class obj = new class();
C. Object obj = createObject();
D. obj = createObject();

What is the output of printf("%c", 'a' - 32);?

A. a
B. A
C. b
D. B

Which method is called to compare objects for equality in Java?

A. compare()
B. equals()
C. compareTo()
D. equality()

What is the purpose of the 'super()' constructor in Java?

A. Invoke the superclass constructor
B. Refer to the parent class
C. Invoke the subclass constructor
D. Create a superclass instance

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

A. Create a static method
B. Create a static variable
C. Define a constant
D. Create a static class

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

A. Get a character without echoing to the screen
B. Get a character with echoing to the screen
C. Get an integer
D. Get a float

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

A. Declare an automatic variable
B. Declare an automatic pointer
C. Automatically allocate memory
D. Auto-cast variables

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

A. Flush the keyboard buffer
B. Flush the output buffer
C. Flush the standard input
D. Flush the file stream

How do you declare a function pointer in C?

A. int (*funcPtr)();
B. int funcPtr();
C. (*int funcPtr)();
D. int *funcPtr();