Interview Questions and Answers for 'Daffodil Software' - 3 question(s) found - Order By Newest Basic and Very Frequently asked. Q1. What is Polymorphism in Java ? Core Java 2016-11-06 09:10:54
Ans. Polymorphism means the condition of occurring in several different forms. Sample Code for overloading Sample Code for overriding Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 107 Companies Basic frequent Related Questions What are points to consider in terms of access modifier when we are overriding any method? If everything is an object , Cant we declare every object as Shouldn't we make a class with all static members is its just expected to be executed as a standalone program with just one thread. Moreover Lets assume that there is no runtime Polymorphism required and there is no need for serialization ? Is this Polymorphism ? When are static and instance methods resolved ? During compile time or Runtime ? Which of the following is not the difference between Singleton and Static class ( Class with static members only ) ? Which of the following do you think is the primary reason you would never use a static class even the application doesn't need multiple requests or threads ? How is static and dynamic polymorphism achieved in Java ? Why do we need polymorphism in Java ? Q2. Can you give a real world example of Encapsulation and Abstraction ? Core Java 2016-05-29 13:47:31
Ans. Car Engine is an example of encapsulation and abstraction. You ignite the car using an interface called starter and least bothered about how the tire actually moves (This is abstraction). The engine encapsulates the complete process to itself only and doesn't allow you to start the other components like the radiator etc ( this is excapsulation ) Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 13 Companies Related Questions Explain OOPs Which of the following Java feature promotes access protection or Hiding ? Define encapsulation in Java ? Give an example of how Object Oriented Programming Concepts can be implemented. Which of the OOP's features facilitate dependency injection ? Which of the OOP's feature - encapsulation or abstraction - is more important ? Which of the polymorphism type - static or runtime - is more important ? Which of the OOP's feature is most important ? Q3. What is a finalize method ? Core Java Anonymous
Ans. finalize() method is called just before an object is destroyed. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies basic frequent Related Questions Does garbage collection guarantee that a program will not run out of memory? Why Char array is preferred over String for storing password? Describe, in general, how java's garbage collector works ? Let's suppose we have an to destroy objects, Design a program to implement garbage collection ? What are strong, soft, weak and phantom references in Java ? Should we override finalize method ? Can we call the garbage collector explicitly ? What does String intern() method do? Java doesn't provide exclusive access to memory like C/C++ and other lower level languages ? What are the advantanges and disadvantages ?
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