Hadoop interview questions and answers for freshers and experienced - Part 1 31.Using linux command line. how will you Copy file from your local directory to HDFS hadoop... read more ?

Class is a template and when we create object instance variables gets memory. If we create two objects variables get memory in two objects. So instance variables gets... read more ?

Static means class level and non static means object level. Non static variable gets memory in each in every object dynamically. Static variables are not part of object... read more ?

1.What is HDFS? HDFS, the Hadoop Distributed File System, is a distributed file system designed to hold very large amounts of data (terabytes or even petabytes), and provide... read more ?

We can read java file using buffered reader class in java We need to import java.io.BufferedReader in order to read java text file. Create object of java.io.BufferedReader class... read more ?

Yes we can define a constructor in abstract class in java. (adsbygoogle = window.adsbygoogle || []).push({}); Then next question will come like when we can not create object... read more ?

In java we can generate random number in two ways  By using Random class By using Math.random (adsbygoogle = window.adsbygoogle || []).push({}); Program #1:  Java Example program to... read more ?