MCQS TODAY

Programming

Which keyword is used to declare a constant in Java?

A. constant
B. const
C. final
D. static

What is the purpose of the 'this' keyword in Java?

A. Refer to the current object
B. Refer to the parent class
C. Refer to the child class
D. Refer to the global scope

How do you declare a constant in an interface in Java?

A. const int CONSTANT = 5;
B. final int CONSTANT = 5;
C. static final int CONSTANT = 5;
D. public final int CONSTANT = 5;

Which of the following is not a primitive data type in Java?

A. int
B. float
C. double
D. class

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

A. Allocate memory for an array
B. Free allocated memory
C. Allocate memory for a variable
D. Allocate and initialize memory for an array

How is a single-line comment written in C?

A. // Comment
B. /* Comment */
C. # Comment
D. -- Comment

Which of the following is not a valid C data type?

A. int
B. char
C. real
D. double

What is the purpose of the 'sizeof' operator in C?

A. Returns size of a variable
B. Returns ASCII value
C. Returns the memory address
D. Returns pointer size

What is the purpose of the 'break' statement in a switch statement?

A. Exit the program
B. Skip to the next case
C. Exit the loop
D. Terminate the switch statement

Which function is used to read a character from the standard input in C?

A. read()
B. getchar()
C. getc()
D. scanf()