Core java - Interview Questions and Answers for 'Bnp paribas' | Search Interview Question

Core java - Interview Questions and Answers for 'Bnp paribas' - 3 question(s) found - Order By Newest

Q1. Explain Autoboxing ?

Ans. Autoboxing is the automatic conversion that the Java compiler makes between the primitive types and their corresponding object wrapper classes

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Will this code give error if i try to add two heterogeneous elements in the arraylist. ? and Why ?

Q2. What is ConcurrentModificationException ?

Core Java

Ans. This is the exception that is thrown when we try to modify the non concurrent collection class while iterating through it.

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What is CopyOnWriteArrayList ?

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Q3. What is Comparable Interface?

Core Java

Ans. It is used to sort collections and arrays of objects using the collections.sort() and java.utils. The objects of the class implementing the Comparable interface can be ordered.

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