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| Core java - Interview Questions and Answers for 'Ericsson' - 2 question(s) found - Order By Newest | ||||
 Very frequently asked in phone and walk in interviews. | ||||
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| 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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 Discuss Correct / Improve  java oops interfaces marker interface serializable clonable  Asked in 21 Companies  intermediate  frequent | ||||
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 Related Questions | ||||
 Difference between serializable and externalizable interface ? | ||||
| How Marker interfaces works internally ? | ||||
| Is runnable a Marker interface ? | ||||
| Whats the purpose of marker interfaces ? | ||||
| What is a cloneable interface and what all methods does it contain? | ||||
| What is a delete marker wrt to S3 objects ? | ||||
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| 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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| Discuss Correct / Improve instance initialization blocks constructor constructor vs instance initialization blocks Asked in 2 Companies | ||||
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| Related Questions | ||||
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