Interview Questions for Senior Java Developer at Iris Software, Noida

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:

  1. What's your role in your current project. 
  2. Which java version you are using in your project and what are the new feature in that.
  3. Why Exception class is checked exception but it's child Runtime is unchecked exception.
  4. What is the use of SerialVersionUID in serialization. Can we also change the properties after serialize any object.
  5. There are two methods void some(Object obj) and void some(String str) if I will some(null) which one will call.
  6. What is the difference between notify() and wait() methods.
  7. What are all way to create thread in java and also describe Executors.newCachedThreadPool()
  8. Would given code compile successfully or what ?                                                                          try{throw new Exception()}catch(Exception e){}

Answers: 

   5. It will call to some(String str ) methods
   6. wait() method is use to release the lock and also change the state of the    thread. The thread will move into waiting state. but notify() method is wake-up other a thread which was in waiting state.

Please comment your answers for above questions 😆

Location: Noida, Uttar Pradesh, India

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