Interview Questions and Answers for 'Kewill' - 2 question(s) found - Order By Newest Very frequently asked. Favorite question in Walk in Drive of many Indian service companies. Frequently asked in HCL Technologies, TCS and Accenture. Q1. What is the difference between final, finally and finalize() ? Core Java
Ans. final - constant variable, objects cannot be de-referenced, restricting method overriding, restricting class sub classing. Sample Code for final Sample Code for finally Sample Code for finalize Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 61 Companies basic frequent Related Questions Difference between final and effectively final ? Why is effectively final even required ? Which of the following combination of keywords is illegal in Java ? What is a final method ? Which keyword is used to provide explicit access of a code block to single thread ? Enums cannot be declared .. What is a Final Variable ? Should we override finalize method ? Will the static block be executed in the following code ? Why ? Can we override compareTo method for Enumerations ? Basic and Very Frequently asked. 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 108 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 Why do we need polymorphism in Java ? How does java identifies which method to be called in method overriding or runtime polymorphism, when both methods share the same name and signature ? 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 ?
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java oops final finally finalize final vs finally vs finalize 
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Which of the following is wrong for final instance variables ?
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