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Interview Questions and Answers for 'Ericsson' - 3 question(s) found - Order By Newest

Very frequently asked in phone and walk in interviews.
  Q1. What are Marker Interfaces ? Name few Java marker interfaces ?Core Java
Ans. An interface without any method declaration is called as marker interface. there are 3 in-built interfaces in JVM i.e. serializable, clonable, remote

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   Like         Discuss         Correct / Improve     java   oops   interfaces   marker interface   serializable   clonable     Asked in 21 Companies      intermediate        frequent

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Related Questions

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 Q2. What is the difference between constructor and instance initialization blocks ?Core Java
Ans. Constructor has the same name as class name whereas instance initialization block just have a body without any name or visibility type.

instance initialization blocks are useful if we want to have some code run regardless of which constructor is used or if we want to do some instance initialization for anonymous classes.

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   Like         Discuss         Correct / Improve     instance initialization blocks  constructor  constructor vs instance initialization blocks     Asked in 2 Companies

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Frequently asked in Accenture.
  Q3. What is your biggest achievement at work ?General
Ans. [Open Ended Answer]

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   Like         Discuss         Correct / Improve     general question  non technical question     Asked in 20 Companies        frequent


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