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What is the stack and the queue, what are the differences between them? What should I do to prevent a ConcurrentModificationException? What is the difference between fail-safe and fail-fast properties? What are the ways to iterate through all the elements of the List?
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What is the difference between Iterator and ListIterator? Why is there no method in the iterator class to get the next item without moving the cursor? Java Collection Interview Questions And Answers For 5 year Experience.Why is there no iterator.add () method to add elements to the collection? What is the difference between Iterator and Enumeration? Why is the Map not inherited from Collection? How to get a collection only for reading? Java Collection Interview Questions And Answers For 3 Years Experience.How to get synchronized collection from non-synchronized? What functionality does the Collections class represent? Java Collections Interview Questions And Answers For Experienced.How is the order of objects in the collection, how to sort the collection? What will happen if we put two values with the same key in Map? What is a Hashtable, how does it differ from a HashMap? To date, it is deprecated, how to still use the necessary functionality? What is the difference between HashMap and TreeMap? How do they work and work? What with the time of access to objects, which dependencies? What do you know about the implementation of the HashSet and TreeSet classes? Advanced Java Collections Interview Questions And Answers.What is the difference between ArrayList and Vector? When is it wise to use an array rather than an ArrayList? What is different / common for ArrayList and LinkedList when it is better to use ArrayList, and when is LinkedList? What are the differences / similarities between List and Set? What implementations of SortedSet do you know and what are their features? Top Java Collections Interview Questions And Answers.What are the main implementations of List, Set, Map? What do you know about collections of type Map, what is their fundamental difference? What do you know about collections like Queue? What do you know about collections like Set? What do you know about collections of type List? What are the benefits of using collections? Java Collections Interview Questions & Answers.