Collections are used in every programming language and initial java release contained few classes for collections: Vector, Stack, Hashtable, Array. But looking at the larger scope and usage, Java 1.2 came up wit
By implementing these interfaces, collections become iterable and can be easily traversed.Advanced Java Collection Interview QuestionsQ15. How does the Map interface differ from the other interfaces in the Collection framework? The Map interface in the Collection framework is different from other ...
The above points clearly state the demand for Java collections professionals. We are certain that our java collections interview questions can assist you in cracking the interview and bagging your dream job. We have classified Java collections Interview Questions into two stages they are: Frequently A...
Map is not a part of the Collection interface because it works on key-value pairs and does not fit the single-object structure of collections like List or Set. Collections store only values, whereas Maps store keys along with values, thus making them structurally different.What is the ...
Java Collections Framework are the fundamental aspect of java programming language. It’s one of the important topic for java interview questions. Here I
Java Collections Framework contains most commonly asked Java interview questions. A good understanding of Collections framework is required to understand and leverage many powerful features of Java technology. Java Collections framework is fundamental ut
# Java Collections Framework Questions 1. What is Java Collections framework? What are its advantages? By definition, a Collection isan object that can store a group of objects.Like in set theory, a set is a group of elements. Easy enough !!
ModifiableCollection, ModifiableSet, ModifiableList, and ModifiableMap. What was previously a simple hierarchy is now a messy heterarchy. Also, you need a new Iterator interface for use with unmodifiable Collections, that does not contain the remove operation. Now can you do away with UnsupportedOper...
Core Java Interview Questions and Answers I have already written a lot aboutjava interview questionsfor specific topics such as String, Collections, and Multithreading. Java String Interview Questions Java Thread Interview Questions Java Collections Interview Questions ...
10) What happens if we add the same key with different values to a HashMap? The new value replaces the old one because HashMap doesn't allow duplicate keys. 11) What is the use of load factor? The load factor in collections such as HashMap determines when the table should be resized...