question What is the purpose of the default keyword in a switch statement

Programming

What is the purpose of the 'default' keyword in a switch statement?

A. Execute the default case
B. Define a default value
C. Provide a default constructor
D. Specify default permissions

'default' is used for the default case in a switch statement.

What is the purpose of the 'instanceof' operator in Java?

A. Check if an object is an instance of a class
B. Compare two objects
C. Check if a class is an instance of an object
D. Check if an object is null

What is the output of printf("%f", 10 / 3);?

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

What is the output of printf("%c", 65);?

A. A
B. B
C. 65
D. 66

Which operator is used to access the value pointed to by a pointer in C?

A. ->
B. *
C. ::
D. .

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 'volatile' keyword in C?

A. Declare a volatile variable
B. Indicate an unstable function
C. Declare a constant variable
D. Indicate a variable that can change unexpectedly

What is the purpose of the 'break' statement in a loop in Java?

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

How do you declare an array in Java?

A. int[] arr;
B. int arr();
C. array arr;
D. array[] arr;

What is the output of System.out.println(Math.floor(7.8));?

A. 7
B. 8
C. 7.8
D. 8.0

How do you declare a global variable in C?

A. global var;
B. int global;
C. extern int global;
D. static global;