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Hadoop 3.0 Installation

This blog, Apache Hadoop 3.0 Installation, will assist you install and verify your pseudo-distributed, single-node & distributed instance in UNIX box (RHLE or Ubuntu). Hadoop 3.0 needs java 1.8 and...

Hadoop 3.0 New Features And Enhancement

Why do you need Hadoop 3.0 new features and enhancement and what is driving this change. The key driving force behind Hadoop 3.0 that there are lot of content in...

CAP Theorem

CAP Theorem was proposed by Eric Brewer (professor of computer science at the University of California, Berkeley, and vice president of infrastructure at Google) in year 2000. Eric found that...

Java 9 Modular Programming Concept

Java 9 Modular Programming Concept is a powerful feature which is introduced in JDK 1.9. Modularity specifies the interrelation and intercommunication between the parts that comprise a softwaresystem. Modular programming...

Java Interview Question Tips For Entry Level Developers

If you are reading my title “Java Interview Question Tips For Entry Level Developers”, I can consider that you are somewhere around 0-1 year of experience java developer. You might...

OCJP Practice Papers - Java Concurrency

OCJP Practice Papers Java Concurrency include following topics Create worker threads using Runnable, Callable and use an ExecutorService toconcurrently execute tasks Identify potential threading problems among deadlock, starvation, livelock, andrace...

OCJP Practice Papers - Java File I/O Nio.2

OCJP Practice Papers Java File I/O NIO.2 include following topics Use Path interface to operate on file and directory paths Use Files class to check, read, delete, copy, move, manage...

OCJP Practice Papers - Selected Classes From Java API

OCJP Practice Papers Selected Classes from Java API include following topics Manipulate data using the StringBuilder class and its methods Create and manipulate Strings Create and manipulate calendar data using...

OCJP Practice Papers - Handling Exceptions

OCJP Practice Papers Java Handling Exceptions include following topics Differentiate among checked exceptions, unchecked exceptions, and Errors Create a try-catch block and determine how exceptions alter normal program flow Describe...

OCJP Practice Papers - Working With Inheritance

OCJP Practice Papers Java Stream API include following topics Describe inheritance and its benefits Develop code that makes use of polymorphism; develop code that overrides methods; differentiate between the type...