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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 8 of 30

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Q71.
Which of these method of String class is used to obtain character at specified index?
Discuss
Answer: (d).charAt()
Q72.
Which of these keywords is used to refer to member of base class from a subclass?
Discuss
Answer: (b).super
Q73.
Which of these method of String class can be used to test to strings for equality?
Discuss
Answer: (d).equals()
Q74.
What is the output of this program?
    class string_demo 
    {
        public static void main(String args[])
        {
            String obj = "I" + "like" + "Java";   
            System.out.println(obj);     
        }
   }
Discuss
Answer: (d).IlikeJava
Q75.
What is the output of this program?
    class string_class 
    {
        public static void main(String args[])
        {
            String obj = "I LIKE JAVA";   
            System.out.println(obj.charAt(3));
        } 
    }

a.

I

b.

L

c.

K

d.

E

Discuss
Answer: (a).I
Q76.
Which of these is the method which is executed first before execution of any other thing takes place in a program?
Discuss
Answer: (c).static method
Q77.
What is the process of defining more than one method in a class differentiated by parameters?
Discuss
Answer: (b).Function overloading
Q78.
Which of these can be used to differentiate two or more methods having the same name?
Discuss
Answer: (d).All of the mentioned
Q79.
Which of these data type can be used for a method having a return statement in it?
Discuss
Answer: (d).both int and float
Q80.
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

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