Interview Model

Overview: RSystem takes first technical round, if you clear this round then second round will be only for formality, if you will be selected then you have to clear the client interview before assign the project. Interview Questions: How HashMap works.  What is the difference between ConcurrentHashMap and Flat map? Implement the singleton and factory patterns Write a JUnit test class to test any service Aggregation and projection queries in mongodb Rest of the questions were from my project. Interviewer was also asking the configuration part in written. Please comment your answers for above questions 😆

Overview: Iris Software provides cab as well as lunch for interviewee. It's take first written then two technical rounds after then a client round. Interview Questions: What's your role in your current project.  Which java version you are using in your project and what are the new feature in that. Why Exception class is checked exception but it's child Runtime is unchecked exception. What is the use of SerialVersionUID in serialization. Can we also change the properties after serialize any object. There are two methods void some(Object obj) and void some(String str) if I will some(null) which one will call. What is the difference between notify() and wait() methods. What are all way to create thread in java and also describe Executors.newCachedThreadPool() Would given code compile successfully or what ?                                               ...

Ingenuity Gaming Pvt Ltd   Barco Moglix Iris Software RSystem   Kindly share your resume on the company website to schedule your interview 😄

Overview: Ingenuity Gaming Pvt Ltd is service based company. It has around 200 employee but don't have sufficient resources like Cafeteria, Lift and Parking . There are having 2 technical, 1 client round and they mainly focus on Core Java and logical skills. Interview Questions: First Round: Describe your self. What is the abstract class and can we have a abstract class without any abstract method. Difference between abstract class and interface. What are the ways to create thread in Java What is the synchronization Implement Singleton design pattern Internal implementation of HashMap There is an array which is having 1 to 50 number and 1 number is missing. Write a program to find the missing number There is an array which is having 1 to 10 numbers. Write a program to find highest and second highest number from the array. What is the use of maven Difference between git and svn and also ask tells daily uses git commands Second Round: Define a ...

Overview: Barco has very slow process. First of all I filled all my personal & professional details in a long form, then wait for 2 hours to start the interview while there were no any another candidate except me. Interview Questions: Describe your whole day activity. How many types of scope in spring There is a singleton bean A which is using bean B which is prototype now I want that whenever I will call to A then B should create new at every time. Hint: We can achieve it using Proxy scope. What is the use of AOP Difference between volatile int and AtomicInteger and which one is better What is Synchronizer and how CountDownLatch solve the problem How voting work to become a master in mongo and what is the use arbitrary node and what will happen when there will be only single node live. What are cluster and replica set in mongodb. Difference between git and svn How many types of cache in mongo and why do we use second level cache Describe Agile process What mo...

Overview: I had a scheduled interview in Moglix , Noida on july, 2017. First of all they gave me a form to fill all my personal & professional details. There were three technical rounds. They were mostly focusing in Core Java. The interview was good but they did not offer. Interview Questions: Round 1:   Describe your self How much you rate your self in core java out of 10 Give a real scenario to use interface and abstract class. How many types of Design Patterns, implement singleton design pattern How indexing works in Elastic Search How to defined structure in Elastic Search There is an array which has 1 to 10 unique numbers and one number is missing. Find the missing number in O(1) complexity. What is the difference between HashMap, HashTable & ConcurrentHashMap classes. Round 2: When you will extends Thread class How many way to create Object of any class When will you use MongoDB inplace of MySql Implement singleton design pattern using enum ...