I applied through a recruiter. The process took 1 week. I interviewed at Iris Software (Pune) in Mar 2025
Interview
The process was not good. For L1 interview, a fresher type epmloyee took interview. Even he was not sure about the answer. Later I got message that I have cleared the L1 and recruiter scheduled for L2. But later she canceled the interview. And she informed me that I have not cleared the L1.
Interview questions [1]
Question 1
Java Serialization, Memory management in JVM, Spring boot and microservices. Java 8 programming.
I applied through other source. I interviewed at Iris Software (Noida) in May 2019
Interview
It was a walk-in and got a call from HR to appear for the same on weekend-Saturday.
1st Round from which i was not shortlisted was taken at 3:30pm after waiting for 2 hours(reached venue at 1.30pm)
Interviewer seems to be in too much hurry to leave for home that even after answering almost 80% of the questions correctly, profile was not shortlisted.
Interview questions [1]
Question 1
Overall exp., technologies worked upon, versions, duration
Hashcode vs equals, contract b/w both by java
Save employee object in hashmap when hashcode returns 1 and equals always “true” , and make e1,e2,e3 as key or employee.id as key, size of hashmap will be?
Method overriding
Class lock, method lock
Can we take lock on object of class when class level lock is already acquired
Executer apis in java
How to restrict add method on list
Diff scopes in spring
Are controllers threadsafe
How to make the same threadsafe
Runnable vs callable
Aggregation and composition
Hibernate caching
Session vs session factory
Comparable vs comparator
I applied through a recruiter. I interviewed at Iris Software (Noida) in Aug 2018
Interview
I got a call from iris HR on 9th august 2018, a telephonic round was scheduled for 10 August, I could clear that . I was called for face to face discussion after 3 days,giving interview questions asked for that round
Interview questions [1]
Question 1
Q1. What is java memory model explain it?
Q2. How Hashmap works internally many questions on the hashmap working.
a. What is the data structure is used to store entity?
b. how hashcode works with the performace of hashmap?
c. What is the good way to override hashmap?
d. Which version of java uses Red Black tree for storing hash entity having hashcode collision?
e. What is hash collision explain that.
write some code which uses a class as key and override hashcode and equals mehod in that.
f.write code for good hashcode.
Q3 What is Executor framework in java?
a. write code for creating threads using executor framework.
b. How will you assign threads doing subtask in executor framework?
c. What is Lock?
d. which is concurrency package, what are the classes in that?
e. what is semaphore? Where it is used?
f.Tell something about producer and consumer problem, which class of queue interface is used to solve it?
Q4 How ArrayList works? which Collection is resizable? when arraylist grows what is the new size?