Java collections framework interview questions

Java collections framework interview questions

In this video of java collections interview questions we have covered java collection framework interview questions or top collections interview questions starting with hierarchy of collection framework in java collection hierarchy in java will demonstrate in depth knowledge of candidate.

Java collection framework interview questions | java collections interview questions | fail fast and fail safe | Internal Working of hash map

Collection Hierarchy 00:16 Map doesn’t extend the Collection Interface 13:13 Difference between fail-fast and fail-safe Iterators 14:51 java BlockingQueue 16:43 Difference between Synchronized Collection and Concurrent Collection with pictorial understanding 18: 10 Internal Working of hash map with pictorial explanation 20:13

In this video of java collections interview questions we have covered java collection framework interview questions or top collections interview questions starting with hierarchy of collection framework in java collection hierarchy in java will demonstrate in depth knowledge of candidate.


In java collections interview questions. java.util.Collection is the root of the Java Collection framework and most of the collections in Java are inherited from this interface except Map Interface

java.util.List : Contains ordered elements May include duplicates Supports the index-based search, random access but elements can be easily inserted irrespective of the position.

java.util.Queue follows a FIFO approach Elements adds at rear end and removes from the front end.

java.util.Set: Doesn’t define an order for the elements hence index-based search is not supported Doesn’t contain duplicates

java.util.Map Represents a key, value pair Map interface does not implement the Collection. It can only contain a unique key can have duplicate values

In java collections interview questions Similarly all these interfaces have implementing class and all those implementing classes have some 2 3 unique feature which differentiate them from the other collections. Please have a look at each of them in video as i have limited word limit here :)

The Java BlockingQueue interface, java.util.concurrent.BlockingQueue, represents a queue which is thread safe to put elements into, and take elements out of from. In other words, multiple threads can be inserting and taking elements concurrently from a Java BlockingQueue, without any concurrency issues arising.

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