Multithreading and Synchronization are considered as the typical chapter in java programming. In game development companies, multithreading related interview questions are asked mostly. A list of frequently asked java multithreading and concurrency interview questions and answers is given below. 1) What is multithreading? Multithreading is a process of executing multiple […]
Java Interview Questions And Answers In this Java Interview Questions blog, we are going to list some of the most important Java Interview Questions and Answers which will set you apart in the interview process. Java is used by approx 10 Million developers worldwide to develop applications for 15 Billion devices supporting Java. […]
Combiner function is used as an optimization technique for MapReduce jobs. Combiner class combines/reduce the data generated by Mappers before it gets transferred to the Reducers. In previous post, you learned about how combiner works in MapReduce programming. In most of cases you can use Reducer class as Combiner class. […]
Java HashMap Introduction Java HashMap is the HashTable implementation of Map interface. It is a collection used to store data as key and value. It allow a single null in Key and any number of null values. Java HashMap Anatomy Buckets: It is the Entry array created to hold different key-value […]