Java Collections have come through a long way with the usage of Generics and Concurrent Collection classes for thread-safe operations. It also includes blocking interfaces and their implementations in java conc
For now, let us learn that there are two utility classes in the Collection framework which are mostly seen in interviews: Collections Arrays Collectionsclass provides static functions to perform specific operations on various collection types. AndArraysprovide utility functions to be performed on array ...
What is the Collection framework in Java? Collection Framework is a combination of classes and interface, which is used to store and manipulate the data in the form of objects. It provides various classes such as ArrayList, Vector, Stack, and HashSet, etc. and interfaces such as List, Queue...
One of the classic interview Questions asked on Java collection framework, This is pretty old and programmer who has been working in Java for 4 to 6 years must have seen this question before. WellIterator and ListIterator in Javais a new way to iterator collection in Java and provides abilit...
The Native Method Interface is a programming framework. It allows Java code which is running in a JVM to call by libraries and native applications. 9) Native Method Libraries Native Libraries is a collection of the Native Libraries(C, C++) which are needed by the Execution Engine. Software Co...
The Collection in Java is a framework that provides an architecture to store and manipulate the group of objects. Java Collections can achieve all the operations that you perform on data such as searching, sorting, insertion, manipulation, and deletion.Java Collection means a single unit of ...
We can also say that it is a lightweight inversion of control(IoC) container and aspect-oriented container framework for the Java platform. Spring handles the infrastructure so that we can focus on our application development. It was created by Rod Johnson. In 2003 Spring came into existence....
More than 50 questions on JSF-2 with detailed answers, go through them as a refresher on JSF framework. 8.Hibernate Interview Questions and Answers Hibernate is the best Java-based ORM tool in the market. It’s used a lot in most of the enterprise applications to overcome the shortcomings ...
8) What is intern() in Java? The intern () method puts a string into a special "string pool", so that if multiple string literals are identical they share the same memory reference and memory usage drops. 9) Which collection classes allow NULL?
In “How HashMap works in Java“, we learned the internals of HashMap or ConcurrentHashMap class and how they fit into the whole concept. But when the interviewer asks you about HashMap related concepts, he does not stop only on the core concept. The discussion usually goes in multiple ...