I tried to demonstrate how to remove element from List in Java. There might be possibility to asked this question by interviewer in different way in your interview. How to remove any element from List, or its implementation class ArrayList, Vector, LinkedList or CopyOnArrayList. In a day-to-day development, you can found the situation where you …
How to print array either int or string or any another type is straight forward by using Arrays java utility class.
There are different way of traversal of ListArrayList, Vector object in java for getting its values. In day-to-day life, we almost use List with different flavor of created object like AraryList, Vector, LinkedList on every alternate day in java programming language, but way of iteration is different , its depend upon the requirement and the …
How to remove entry from HashMap in Java, or it’s implementation class HashMap, Hashtable, LinkedHashMap, ConcurrentHashMap. removing element from map java.
There are different way of traversal of Map HashMap , ConcurrentHashMap object in java for getting key/value pair . In day-to-day life, we almost use Map (either get or put operation) on every alternate day in java programming language. But way of iteration is different , its depend upon the requirement and thing in mind …
Difference between HashMap and HashSet is one of the most frequently asked interview questions during any level of core java interview.
It’s very important to understand the fundamental of both the interface for interview point of view or for work assignment aspect. Where should you use which interface? you can say most of the time you get encountered this question in interview which one should be used where?
When I first encounter with these terminology, some questions arise in my mind about fail-fast and fail-safe , in initial days. When we add anything while iterating we encounter ConcurrentModificationException, specially , when we delete element from collection while iterating using for-each loop of jdk 5. I hope every developer in their life must encounter …
fail-fast iterator vs fail-safe iterator in Java Read More »
HashMap Vs HashTable Vs SynchronizedMap Vs ConcurrentHashMap. There is a number of questions that can be raised in your mind when we think about HashMap, Hashtable, SynchronizedMap, and ConcurrentHashMap.
HashMap vs concurrentHashMap, well, this is one of the important interview question, in another way, what are the basic differences between HashMap and ConcurrentHashMap?