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Top 5 Core Java Exceptions and best practices

#1: ConcurrentModificationException Getting a ConcurrentModificationException when trying to modify (i.e. adding or removing an item) a collection while iterating. The following code throws a ConcurrentModificationException.

To avoid ConcurrentModificationException in a single-threaded environment, you can remove the object that you are working on with the iterator.

To Avoid ConcurrentModificationException…...

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♦ Java exception handling interview questions and answers

Q1. What is the difference between a runtime exception and a checked exception? A1. You must either catch or throw a checked exception. The unchecked exception (aka Runtime exception) does not have to be explicitly handled. Q. So, when to use checked exception, and when to use unchecked exception? A.…...

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