hadoop

What is Hadoop ? What is big data ?

Hadoop is Apache’s open source framework which allows us to do processing of large data sets in distributed environment, Hadoop uses clustering model with thousands of computers /machines to process large volumes  and variety of data with high velocity. before we looking to Hadoop we need to know  what are origins for Hadoop.   what are the […]

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what is the difference between comparable and comparator

In this tutorial we will learn what is the difference between comparable and comparator interfaces , and when we need to use comparable and when we need to use comparator. Basically “what is the difference between comparable and comparator ? ” is one of the Java interview question,  and in Java we have two interfaces which are using to […]