question How do you declare a constant pointer in C

Programming

How do you declare a constant pointer in C?

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

'const' after '*' makes the pointer itself constant.

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

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

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

How do you define a constant pointer to a constant integer in C?

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

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

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

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 define a multi-line macro in C?

A. #define MACRO_NAME() { }
B. #define MACRO_NAME { }
C. #macro MACRO_NAME { }
D. #macro MACRO_NAME() { }

What is the purpose of the 'finalize' method in Java?

A. Garbage collection
B. Exception handling
C. Object cloning
D. Method overloading

What is the output of System.out.println("Java" == "Java");?

A. true
B. false
C. Compile error
D. Runtime error

Which of the following is a correct way to create an ArrayList in Java?

A. ArrayList arr = new ArrayList();
B. List arr = new List();
C. List arr = new ArrayList();
D. ArrayList arr = new List();

What is the output of System.out.println(10 / 3.0);?

A. 3.33
B. 3.0
C. 3
D. 3.333333