question What is the role of calloc function in C

Programming

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

'calloc' allocates and initializes memory for an array.

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 '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

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();

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

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

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

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

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 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("Java" == "Java");?

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

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

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

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