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Core Java - Interview Questions and Answers for 'Reflection api' - 4 question(s) found - Order By Newest

  Q1. What is reflection ?
Anonymous
Ans. It is the process of examining / modifying the behaviour of an object at runtime.

  Sample Code for reflection

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   Like         Discuss         Correct / Improve     java   reflection   reflection api   ebay   mindtree     Asked in 29 Companies      basic        frequent


 Q2. How can we test methods individually which are not visible or declared private ?
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Ans. We can either increase their visibility and mark them with annotation @VisibleForTesting or can use reflection to individually test those methods.

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   Like         Discuss         Correct / Improve     junit   reflection api   @visiblefortesting   white box tester


 Q3. Is It Good to use Reflection in an application ? Why ?Core Java
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Ans. no, It's like challenging the design of application.

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   Like         Discuss         Correct / Improve     java   reflection api   yes-no   architecture     Asked in 1 Companies      intermediate


 Q4. Why is Reflection slower ?
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Ans. Because it has to inspect the metadata in the bytecode instead of just using precompiled addresses and constants.

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   Like         Discuss         Correct / Improve     java   reflection   reflection api   architecture



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