Java Interview Questions


Real Time Hadoop Interview Questions from Various interviews Hive – Where do you use Internal or Managed table? What scenarios? In your resume, what do you mean by, “monitoring & managing MapReduce jobs”? Explain? Interviewer’s Project: How to modify the RDBMs’ Nested SQL queries into Hadoop framework using Pig. Sqoop: […]

Real Time Hadoop Interview Questions From Different Readers


Below are some of the Java Collections Interview Questions and Answers. Java Collections Interview Questions and Answers 1. What is a collections ? Collection is an object which manages a group of objects called elements which are of same kind, that is they all descents from common parent type. 2. What […]

Java Collections Interview Questions and Answers


Java Interview Questions and Answers for experienced 1. What is the difference between error and an exception? Errors are abnormal conditions that should never occur. Not to be confused with the compile time errors. A method is not required to declare in its throws clause any subclasses of Error that […]

Java Interview Questions and Answers – Part 5



Java Interview Questions and Answers 1. What is the difference between the Boolean & operator and the && operator? If an expression involving the Boolean & operator is evaluated, both operands are evaluated. Then the & operator is applied to the operand. When an expression involving the && operator is […]

Java Interview Questions and Answers – Part 4


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Java Interview Questions and Answers 1. What is JIT Compiler ? JIT compiler coverts a byte code of one operating system to the current operating system’s executable code. This instruction is given by JVM of the current system. The byte is compiled into native platform code. The execution speed is […]

Java Interview Questions and Answers – Part 3


This post is continuation for previous post on Java Interview Questions and Answers. We will try to focus only the concepts that are required for Hadoop Developers and Hadoop Administrators. Java Interview Questions and Answers: 1. What is the difference between a JDK and a JRE ? JDK, Java Development Kit […]

Java Interview Questions and Answers – Part 2



In this post, we will try to cover some of the important Java interview questions and answers that are required for aspirants facing hadoop developer interviews. We will touch base only the concepts that are needed for an hadoop developer or administrator. Java Interview Questions and Answers for Experienced: 1. […]

Java Interview Questions and Answers