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Welcome to the Classes and Methods MCQs Page

Dive deep into the fascinating world of Classes and Methods with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Classes and Methods, a crucial aspect of Java Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Classes and Methods, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Java Programming.

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Check out the MCQs below to embark on an enriching journey through Classes and Methods. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Java Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Classes and Methods. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Classes and Methods MCQs | Page 2 of 30

Q11.
What is the return type of a method that does not return any value?
Discuss
Answer: (c).void
Q12.
What is the process of defining more than one method in a class differentiated by method signature?
Discuss
Answer: (b).Function overloading
Q13.
Which of the following is a method having same name as that of it’s class?
Discuss
Answer: (d).constructor
Q14.
Which method can be defined only once in a program?
Discuss
Answer: (a).main method
Q15.
What is the output of this program?
    class box 
    {
        int width;
        int height;
        int length;
        int volume;
        void volume(int height, int length, int width) 
        {
             volume = width*height*length;
        } 
    }    
    class Prameterized_method
    {
        public static void main(String args[])
        {
            box obj = new box();
            obj.height = 1;
            obj.length = 5;
            obj.width = 5;
            obj.volume(3,2,1);
            System.out.println(obj.volume);        
        } 
     }

a.

0

b.

1

c.

6

d.

25

Discuss
Answer: (c).6
Q16.
What is the output of this program?
    class equality 
    {
        int x;
        int y;
        boolean isequal()
        {
            return(x == y);  
        } 
    }    
    class Output 
    {
        public static void main(String args[])
        {
            equality obj = new equality();
            obj.x = 5;
            obj.y = 5;
            System.out.println(obj.isequal());
        } 
    }
Discuss
Answer: (b).true
Q17.
Which keyword is used by the method to refer to the object that invoked it?
Discuss
Answer: (d).this
Q18.
Which of the following is a method having same name as that of its class?
Discuss
Answer: (d).constructor
Q19.
Which operator is used by Java run time implementations to free the memory of an object when it is no longer needed?
Discuss
Answer: (d).none of the mentioned
Q20.
Which function is used to perform some action when the object is to be destroyed?
Discuss
Answer: (a).finalize()
Page 2 of 30

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