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| Interview Questions and Answers for 'Abc ltd' - 3 question(s) found - Order By Newest | ||||
 Frequently asked question for intermediate developers. Frequently asked in HCL Technologies and EPAM. | ||||
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| Ans. Volatile is a declaration that a variable can be accessed by multiple threads and hence shouldnt be cached. | ||||
 Sample Code for volatile | ||||
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 Discuss Correct / Improve  java oops synchronization volatile java keywords  Asked in 42 Companies  intermediate  frequent | ||||
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 How does volatile affect code optimization by compiler? | ||||
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| what is volatile and atomic | ||||
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| Ans. No Difference. Both are the acceptable ways to declare an array. | ||||
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| Discuss Correct / Improve java array arrays array declaration difference between Asked in 3 Companies basic | ||||
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| Is this array declaration correct ? If not , Why ? String[] strArray = new String[]; | ||||
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| Ans. Yes. Both concepts are independent of each other. Overriding depends on the methods with same name and signature whereas Overloading on same name but with different signatures. All definitions of an overloaded method can be individually overridden in the derived class. For example - Class A has overloaded methods "public void myMethod(String str)" and "public void myMethod(int x)" We can have derived class ClassB extends ClassA and hence can override both methods myMethod(String str) and myMethod(int x) in ClassB | ||||
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| What are points to consider in terms of access modifier when we are overriding any method? | ||||
| Difference between Overloading and Overriding ? | ||||
| Any real life example of Overloading and Overridding ? | ||||
| How compiler handles the exceptions in overriding ? | ||||
| what is covariant return type? | ||||
| Overridden methods must have the same ... | ||||
| What is a Final Method ? | ||||
| Can we reduce the visibility of the inherited or overridden method ? | ||||
| How does java identifies which method to be called in method overriding or runtime polymorphism, when both methods share the same name and signature ? | ||||
| Can we reduce the visibility of the overridden method ? | ||||
