Create List with Single Element
Learn to create List instances with only one element in it using Arrays.asList() and Collections.singletonList() methods. Using Collections.singletonList() Method [ Immutable List ] This is simplest...
View ArticlePopular HashMap and ConcurrentHashMap Interview Questions
In my previous post related to “How HashMap works in java“, I explained the internals of HashMap class and how they fit into whole concept. But when interviewer ask you about HashMap related concepts,...
View ArticleTop Java Collection Interview Questions
Without argument, java collections is one of the most important area where you will be tested in any position whether junior or senior. The scope is so much wide, that its almost impossible to cover...
View ArticleJava Iterate List Examples
To iterate list in java is very basic operation, but over the years it’s gone through some significant changes. We will go through all these changes in given examples. The post Java Iterate List...
View ArticleHow HashMap works in Java
Learn how hashmap works internally in java with example. Learn the hashmap internal implementation analysis, collision resolution and Java 8 hashmap update. The post How HashMap works in Java appeared...
View ArticleJava TreeMap class
TreeMap in Java is used to store key-value pairs very similar to HashMap class. Difference is that TreeMap provides an efficient way to store key/value pairs in sorted order. It is a red-Black tree...
View ArticleJava Spliterator interface
Java Spliterator interface is an internal iterator that breaks the stream into the smaller parts. These smaller parts can be processed in parallel. In real life programming, we may never need to use...
View ArticleJava PriorityQueue class
Java PriorityQueue example. PriorityQueue class is a queue data structure implementation in which objects are processed based on their priority. The post Java PriorityQueue class appeared first on...
View ArticleJava PriorityBlockingQueue class
Java PriorityBlockingQueue class is concurrent blocking queue data structure implementation in which objects are processed based on their priority. The “blocking” part of the name is added to imply the...
View ArticleJava ArrayBlockingQueue class
ArrayBlockingQueue class is Java concurrent and bounded blocking queue implementation backed by an array. It orders elements FIFO (first-in-first-out). The head of the ArrayBlockingQueue is that...
View ArticleJava TransferQueue – Java LinkedTransferQueue class
Java TransferQueue is a concurrent blocking queue implementation in which producers may wait for receipt of messages by consumers. LinkedTransferQueue class is an implementation of TransferQueue in...
View ArticleJava CopyOnWriteArrayList class
Java CopyOnWriteArrayList is a thread-safe variant of ArrayList in which all mutative operations (add, set, and so on) are implemented by making a fresh copy of the underlying array. It’s immutable...
View ArticleJava CopyOnWriteArraySet class
Java CopyOnWriteArraySet example. This class is a thread-safe variant of HashSet which uses a underlying CopyOnWriteArrayList for all of its operations. The post Java CopyOnWriteArraySet class appeared...
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