DXC Technology Java Interview Questions

Telephonic: Nov 2017
Exp Level: 5-7 Years

Interview Time: 45 min

What is stored procedure?
JDK Vs JRE Vs JVM
What is singleton design pattern and how to break that.
What is static block in java?
Which webservice you have worked on?
What is difference between Rest and SOAP webservice?
What is SOAP UI and when you use it.
How is SOAP webservice consumed?
Which collection to used for insertion and deletion in large number?
Volatile keyword in java and its working?
Memory leak and scenario where it can happen and how to fix it?
How to create user defined muttable class. What if we remove final keyword from class.
Overloading vs Overriding
What is covariant in java?
LAZY fetching in Hibernate.
What do you understand by L3 and L2 Support.
What you do when you get a production issue.

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GoodWorkLabs Java Interview Questions

Telephonic: Nov 2017
Exp Level: 5-7 Years

Interview Time: 45 min

Rest Vs SOAP
Callable vs Runnable
What is indexing in Database. What is hashing in Database.
What is blocking queue. Any when it is used. Explain in detail.
Explain Consumer producer problems.
What if you have multiple producer and consumer in producer consumer problem.
Design patterns used in default jar files of Java
Factory Vs Abstract factory pattern
What is Singleton Design Pattern and How we implement it in multithreaded environment.
Annotations used in SOAP webservice Server.
Cache level in hibernate and explain first level and second level cache. Benefits of it.
Interface Vs Abstract Class
OOPS concepts
Can we overload/Override static method. Why?
Which design patterns you have used?
While returning a object from webservice call if you don't want to share all values to client how to do that?
Which annotation is used to convert response to XML format in SOAP webservice?
How you consume webservice?
Overloading vs Overriding
Can we have static class in java. What is static class in java?

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Genpact Capital Markets Java Interview Questions

Telephonic: Dec 2017
Exp Level: 5-7 Years

1) What is Queue in Data Structure. Explain various function in queue.
2) What is Stack in Data Structure. Explain various function in Stack and How you will Implement them.
3) What is Binary Trees and its properties.
4) How do we search in Binary trees.
5) Explain various OOP's Java Concepts.
6) What is Comparable and Comparator in Java. Explain in detail with differences.
7) Can we create a static class in java. If yes, then how.
7) What is Union in SQL and How it is different from Union All.
8) What is IN in SQL.
9) What is Group By, Having clause in SQL.
10) What is view in SQL and how do we create it.
11) There is a Employee class and we want to sort based on Employee id and Employee Name. How to do that.

This is the list of question which I can recall while posting. There were many more questions which were asked. Interview went for around 50 minutes.

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Bidgely Technologies Pvt.Ltd. Java Interview Questions

Face to Face: Dec 2017

Exp Level: 5-7 Years

About your work and past experiences.

Design a Weather App when you have various details Temperature, timestamp, city. It should give max temperature, min temp, city max temperature and add more functionality to app. Design the app and write code. Also design database tables for handling data.

Linux you have a file which has similar string repeated and you want to replace that with other string. Command for that. 

How comfortable you are in linux and your exposure to it.

Create a program to find nearest number for a given number in a range. 

Range is 1-10, 11-20,21-30,31-40 till 100.

Input is 12 Output should be 10.

Input is 28 Output should be 30.

And Few Data structures question to see if candidate have understanding of it.

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Oracle Financials Java Interview Questions

Telephonic: Nov 2017
Exp Level: 5-7 Years

Copy a file to remote server in unix
MySQL second highest query
How we do Hibernate Configuration?
In Hibernate How do we update child table on updating parent table? What annotation or logic we need to use to achieve this.
String in java are connected using underscore. Find substring from first underscore till last underscore
What is pom.xml in maven. Name few tags used in pom.xml?
How to  include local jar in maven. How to configure that in pom.xml?
How will you update child references when parent reference is getting updated in Hibernate.


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