BlackRock Java Interview Questions

Munish Chandel | December 31, 2017 at 09:40 PM | 177 views | algorithm-datastructures


Design Questions

  1. There is a pricing service which connects to Reuters & Bloomberg and fetches the latest price for the given Instrument Tics. There could be multiple price events for the same Stock and we need to consider the latest one. Design a service to show prices for the Top 10 stocks of the Day? Solution is discussed in my eBook

  2. There is a very Big file containing many words, how will you read and process it to print the below information?

    1. Top 10 ranked distinct words.

    2. Occurrence of each Alphabet in the file.

  3. How will you implement a Stack using a Queue?

  4. How will you implement a Queue using a Stack?

  5. How will you design a two way Elevator Software for a building?

  6. What is Immutability? How will you make a class Immutable in Java?

  7. How will you achieve thread-safety in your Java Program?

  8. What are the ways to increase throughput of a multi-threaded java program? (concurrency enhancements - use java.util.concurrent package, connection pooling, other resource pooling, caching, GC tuning, etc.)

  9. How will you troubleshoot poor memory performance of a live production program?

  10. How will you find a single duplicate number from a large array in minimum time?


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240 real Java interview questions on core Java, concurrency, algorithms, design & data structures, spring, hibernate for Investment Bank, Healthcare IT, product and service based companies, Author : Munish Chandel, Price: 250, Type: PDF

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