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Core Java - Interview Questions and Answers for 'Collections.emptylist' - 1 question(s) found - Order By Newest

 Q1. What is the difference between Collections.emptyList() and creating new instance of List using new ?Core Java2016-10-25 10:35:08

Ans. But Collections.emptyList() returns an Immutable list whereas new arraylist() creates a mutable list.

Advantage of getting an empty list using Collections.emptyList is that it returns a singleton list which can be shared among many references and hence made immutable. This is good fit for situations where we would like to initialize a list to basic minimum empty to avoid null pointer exception.

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   Like         Discuss         Correct / Improve     collections  Collections.emptyList  immutable  immutability  immutability


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