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ITCS Java Developer Interview Questions, Process, and Tips
ITCS Java Developer Interview Experiences
1 interview found
Anonymous
I applied via Naukri.com
Interview Questionnaire
12 Questions
- Q1. What static block
- Ans.
Static block is a block of code that is executed when a class is loaded into memory.
Static block is declared using the 'static' keyword.
It is executed only once when the class is loaded.
It is used to initialize static variables or perform any other static initialization.
It can throw exceptions which need to be handled.
Multiple static blocks can be defined in a class and they are executed in the order they are defined.
- Q2. What difference between methid overloading and method overriding
- Ans.
Method overloading is having multiple methods with the same name but different parameters, while method overriding is having a subclass method with the same name and parameters as a superclass method.
Method overloading is resolved at compile-time based on the number and type of arguments passed
Method overriding is resolved at runtime based on the actual object type
Method overloading is used to provide different ways of...
- Q3. Can we add null value in hashmap ?
- Ans.
Yes, null value can be added in HashMap.
HashMap allows null as key and value.
If a null key is added, it will replace the existing null key.
If a null value is added, it will be stored as a value with a null key.
- Q4. Sql update query
- Q5. What is testing
- Ans.
Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not.
Testing is done to identify defects or errors in the system
It helps in improving the quality of the system
Testing can be done at different levels such as unit testing, integration testing, system testing, and acceptance testing
Automated testing is becoming more popular due to ...
- Q6. Difference berween abstract class and interface
- Ans.
Abstract class can have implementation while interface only has method signatures.
Abstract class can have constructors while interface cannot.
A class can implement multiple interfaces but can only extend one abstract class.
Abstract class can have non-abstract methods while interface only has abstract methods.
Abstract class is used for code reusability while interface is used for polymorphism.
Example of abstract class: ...
- Q7. Difference between oracle db and sql db
- Ans.
Oracle DB is a proprietary RDBMS while SQL DB is a generic term for any RDBMS that uses SQL as its language.
Oracle DB is developed and marketed by Oracle Corporation while SQL DB is a generic term for any RDBMS that uses SQL as its language.
Oracle DB is a proprietary RDBMS while SQL DB is a generic term for any RDBMS that uses SQL as its language.
Oracle DB has its own PL/SQL language while SQL DB uses SQL as its langua...
- Q8. Fetures of opps
- Ans.
OOPs is a programming paradigm based on the concept of objects.
Encapsulation - bundling of data and methods that act on that data
Inheritance - ability of a class to inherit properties and methods from a parent class
Polymorphism - ability of objects to take on many forms
Abstraction - hiding of complex implementation details from the user
- Q9. What is abstract
- Ans.
Abstract is a keyword in Java used to create abstract classes and methods.
Abstract classes cannot be instantiated
Abstract methods do not have a body and must be implemented by the subclass
Abstract classes can have both abstract and non-abstract methods
Abstract classes are used to provide a common interface for its subclasses
Example: abstract class Animal { abstract void makeSound(); }
- Q10. What are implicite method of jsp ?
- Ans.
JSP does not have any implicit methods, but it has implicit objects.
JSP has implicit objects like request, response, session, application, pageContext, out, config, and exception.
These objects are automatically available in JSP pages without any declaration or initialization.
They can be used to perform various operations like accessing request parameters, setting session attributes, etc.
- Q11. Servlet is interface or class ?
- Ans.
Servlet is an interface in Java EE used to handle HTTP requests and responses.
Servlet interface is implemented by classes like HttpServlet
It has methods like init(), service(), and destroy()
Servlets are used to create dynamic web pages and web applications
- Q12. What are the framwork do you know ?
- Ans.
I know several frameworks including Spring, Hibernate, and Struts.
Spring: widely used for building enterprise-level applications
Hibernate: object-relational mapping framework for database access
Struts: MVC framework for building web applications
Interview Preparation Tips
Skills evaluated in this interview
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Interview Questionnaire
11 Questions
- Q1. What is the difference between C and C++?
- Ans.
C++ is an extension of C with object-oriented programming features.
C++ supports classes and objects while C does not.
C++ has better support for polymorphism and inheritance.
C++ has a standard template library (STL) which C does not have.
C++ allows function overloading while C does not.
C++ has exception handling while C does not.
- Q2. What is the difference between for and while loop?
- Ans.
For loop is used for iterating over a sequence while while loop is used for iterating until a condition is met.
For loop is used when the number of iterations is known beforehand
While loop is used when the number of iterations is not known beforehand
For loop is faster than while loop for iterating over a sequence
While loop is useful for iterating until a specific condition is met
For loop can be used with range() functio...
- Q3. Write a program to add two numbers without using + operator
- Q4. How to you reverse a string without using any looping and inbuilt functions?
- Ans.
To reverse a string without using any looping and inbuilt functions, we can use recursion.
Create a function that takes a string as input.
If the length of the string is 0 or 1, return the string.
Otherwise, call the function recursively with the substring starting from the second character and concatenate the first character at the end.
Return the reversed string.
Example: reverseString('hello') returns 'olleh'.
- Q5. How many queues will you use to implement a priority queue?
- Ans.
A priority queue can be implemented using a single queue or multiple queues.
One approach is to use a single queue and assign priorities to elements using a separate data structure.
Another approach is to use multiple queues, each representing a different priority level.
For example, if there are three priority levels, three queues can be used to implement the priority queue.
- Q6. Which datastructure would you use to implement an heteregenous array?
- Ans.
An array of objects can be used to implement a heterogeneous array.
Each element in the array can be an object that represents a different data type.
The objects can have different properties and methods based on their respective data types.
For example, an element can be an object representing a string with a 'value' property and a 'length' method.
- Q7. Tell me about yourself?
- Q8. Describe your project?
- Ans.
Developed a web-based inventory management system for a retail company.
Used HTML, CSS, and JavaScript for the front-end development.
Implemented a RESTful API using Node.js and Express for the back-end.
Utilized a MySQL database to store and manage inventory data.
Implemented features like product search, order management, and reporting.
Ensured data security and user authentication using encryption and JWT.
Collaborated wi...
- Q9. You are given a match-box and two candles of equal size, which can burn 1 hour each. You have to measure 90 minutes with these candles. (There is no scale or clock). How do you do?
- Q10. You have 8 balls which are identical(completely). You are given a weighing scale. How many times would you measure to get the odd ball out?
- Q11. Three friends rent a room for Rs.30 by paying Rs.10 each. The owner decides to give them a discount Rs.5 and gives it to the broker. The broker who a cunning man takes Rs.2. and returns one rupee to each ...
- Ans.
The missing rupee is not actually missing. The calculation is misleading and does not account for the total amount paid.
The initial amount paid by each person was Rs.10, totaling Rs.30.
The owner gave them a discount of Rs.5, so they paid Rs.25 in total.
The broker took Rs.2, leaving them with Rs.23.
When the broker returned Rs.1 to each person, they each received Rs.1 back, totaling Rs.3.
So, the total amount paid by the ...
Interview Preparation Tips
Experience: Let me share my interview process with Sapient. As I did not find any helpful papers before attending interview.The initial test was amcat test, which consisted of aptitude, english comprehension(which was annoying because they ask a lot of unknown word meanings), C and C++ basic concepts. I cleared that test.
Round: Technical Interview
Experience: There are 2 interviews round
1) Technical
2) HR
General Tips: Bond: 1.5 yearEligibility Criteria : Greater than 6.5 CGPA
Skills: C++, Java, Algorithm
College Name: NA
Motivation: Sapient, Trust me it’s an awesome company .Be strong in technical area.
Skills evaluated in this interview
Interview Questionnaire
13 Questions
- Q1. Inheritence in java?
- Ans.
Inheritance in Java allows a class to inherit properties and methods from another class.
Inheritance is achieved using the 'extends' keyword.
The class that is being inherited from is called the superclass or parent class.
The class that inherits from the superclass is called the subclass or child class.
Subclasses can access the public and protected members of the superclass.
Inheritance promotes code reusability and allow...
- Q2. Overloading and Overridding?
- Q3. WAP to check if no is palindrom or not?
- Ans.
A program to check if a given number is a palindrome or not.
Convert the number to a string.
Reverse the string and compare it with the original string.
If they are equal, the number is a palindrome.
If not, the number is not a palindrome.
- Q4. Primary key and Composite key?
- Q5. Normalisation?
- Ans.
Normalisation is the process of organizing data in a database to reduce redundancy and improve data integrity.
It involves breaking down a table into smaller tables and defining relationships between them.
Normalization helps to eliminate data inconsistencies and anomalies.
There are different levels of normalization, with each level having specific rules to follow.
For example, first normal form (1NF) requires that each t...
- Q6. Without lifting the pen meet 9 point arranged in squre of 3×3, using 4 lines?
- Q7. If I am ready to relocate anywhere in India or Outside upon company needs
- Ans.
Yes, I am ready to relocate anywhere in India or outside upon company needs.
I am open to exploring new locations and cultures.
I understand that relocation may be necessary for career growth and opportunities.
I am adaptable and willing to adjust to new environments.
I have experience working in diverse teams and can easily integrate into new settings.
- Q8. If I am ready to accept a project in Java, if Sapient had trained you in DotNet earlier
- Ans.
I would be ready to accept a project in Java even if I was trained in DotNet earlier.
I have a strong foundation in programming principles and concepts, which can be applied to any language.
I am confident in my ability to quickly learn and adapt to new technologies.
I have experience working with multiple programming languages and frameworks.
I can leverage my knowledge of DotNet to understand similar concepts in Java.
I a...
- Q9. Why I want to join Sapient
- Ans.
I want to join Sapient because of its reputation for innovative projects and collaborative work environment.
Sapient is known for working on cutting-edge projects that push the boundaries of technology
I value the collaborative work environment at Sapient, where team members support each other to achieve success
I am impressed by Sapient's commitment to professional development and growth opportunities for employees
- Q10. My Expectations from Sapient
- Ans.
My expectations from Sapient
I expect Sapient to provide a challenging and innovative work environment
I expect Sapient to offer opportunities for professional growth and learning
I expect Sapient to have a collaborative and supportive team culture
I expect Sapient to provide competitive compensation and benefits
I expect Sapient to have a strong focus on quality and delivering excellent software solutions
- Q11. What is Counter Strike. ( I mentioned winning a couple of gaming events in my Resume)
- Q12. What is Trading/Stocks/Exchange. (I had shown my interest in these things by mentioning the development of DalalStreet website by me)
- Q13. What are you proud of apart from your website DalalStreet and a few more
Interview Preparation Tips
Experience: Vendor based online test consisting of 4 sections – Maths, Logical Reasoning, English and Technical(C/C++/DS/Debugging based Questions). This includes Sectional CutOff as well.
Round: Technical Interview
Experience: Another One on One Interview. Technical Questions on Languages/DataBases and Projects/Internships mentioned by you in your Resume. Lots of Puzzles.
In my case the Interviewer asked me questions on Database(3-4 queries),PHP,HTML,CSS,Internship,C/C++ Basics. Also I had 4 puzzles.
Round: HR Interview
Experience: Key : Just be yourself and be Confident in whatever you say. Show your eagerness to learn things (even if you don’t want to ). If you don’t know anything, Confidently speak up you don’t know. They hardly care, they only see if you are willing to learn.
General Tips: I would add here that SGM is majorly into developing Trading application. SGM – GlobalMarketInstitute would provide you with 6 months of training in technology(Java/DotNet) and Finance(Share/Exchange/Equities etc), which would be a great experience. Hence a knowledge and interest in Share Trading stuff is highly appreciated if you plan to grow your career in Sapient Global Markets.(Bond Agreement of 1.5 years which includes 6 months of Training Period)
Skills: PHP, Databases, C++, Java, .NET
College Name: MNIT Jaipur
Skills evaluated in this interview
Nihal Bisen
Interview Questionnaire
13 Questions
- Q1. Indroduce yourself ?
- Ans.
I am a software developer with experience in various programming languages and frameworks.
Proficient in Java, C++, and Python
Familiar with web development using HTML, CSS, and JavaScript
Experience with database management systems such as MySQL and MongoDB
Strong problem-solving and analytical skills
Worked on projects involving machine learning and artificial intelligence
- Q2. Difference between method overloading and methode overriding ?
- Ans.
Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a subclass method with the same name and parameters as a superclass method.
Method overloading is used to provide different ways of calling the same method with different parameters.
Method overriding is used to provide a specific implementation of a method in a subclass that is already defined in the su...
- Q3. Difference between switch case and if else statement?
- Ans.
Switch case is used for multiple conditions while if else is used for binary conditions.
Switch case is faster than if else for multiple conditions.
If else can handle complex conditions while switch case cannot.
Switch case can only compare values of the same data type.
If else can handle null values while switch case cannot.
Example: switch (day) { case 1: console.log('Monday'); break; case 2: console.log('Tuesday'); brea...
- Q4. What is interface and abstract class?
- Ans.
Interface and abstract class are both used for abstraction in object-oriented programming.
An interface is a collection of abstract methods that define a contract for a class to implement.
An abstract class is a class that cannot be instantiated and may contain abstract methods.
Interfaces are used to achieve multiple inheritance in Java.
Abstract classes can have non-abstract methods and instance variables.
An example of a...
- Q5. Whats is polymorphisom?
- Ans.
Polymorphism is the ability of an object to take on many forms.
It allows objects of different classes to be treated as if they were objects of the same class.
It is achieved through method overriding and method overloading.
Example: A shape class can have multiple subclasses like circle, square, etc. and all can be treated as shapes.
Example: A method can have different implementations in different classes but with the sa
- Q6. What is inherritance ?
- Ans.
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
Inheritance allows code reusability and saves time and effort in writing new code.
The existing class is called the parent or base class, and the new class is called the child or derived class.
The child class inherits all the properties and methods of the parent class and can also add its ...
- Q7. Default case in switch case
- Ans.
Default case in switch case statement
Default case is executed when no other case matches the switch expression
It is optional and can be placed anywhere in the switch statement
It is often used to handle unexpected input or errors
It should always be the last case in the switch statement
- Q8. Introduce yourself apart from resume?
- Ans.
I am a passionate software developer with a strong background in web development and a love for problem-solving.
Experienced in HTML, CSS, JavaScript, and various web development frameworks
Proficient in backend development using languages like Java, Python, and Node.js
Familiar with database management systems such as MySQL and MongoDB
Strong problem-solving skills and ability to work well in a team environment
- Q9. What is your weaknesses ?
- Ans.
I tend to get overly focused on details, which can sometimes slow down my progress.
I have a tendency to spend too much time on perfecting small details
I sometimes struggle with prioritizing tasks due to my focus on details
I am working on improving my time management skills to balance detail-oriented work with efficiency
- Q10. Do you have any offer from any other company ?
- Ans.
Yes, I have received offers from two other companies.
Received offers from Company A and Company B
Currently evaluating all offers to make an informed decision
Considering factors like company culture, growth opportunities, and compensation
- Q11. Which company would you like to join apart from sapient ?
- Ans.
I would like to join Google because of their innovative projects and work culture.
Google is known for its cutting-edge technology and innovative projects.
They have a strong focus on employee well-being and work-life balance.
Google offers opportunities for career growth and development.
The company has a diverse and inclusive work culture.
Google is a leader in the tech industry with a global presence.
- Q12. Have you ever worked in a team?
- Ans.
Yes, I have worked in multiple teams in various projects.
Worked in a team of developers to create a new software application
Collaborated with designers, testers, and project managers to meet project deadlines
Participated in daily stand-up meetings to discuss progress and roadblocks
- Q13. 8 metals bolls are similar ?
- Ans.
Yes, they are similar.
All 8 metal balls are of the same material.
They have the same size and weight.
They have the same physical properties.
They are interchangeable in any given situation.
Interview Preparation Tips
Skills evaluated in this interview
I appeared for an interview before Dec 2015.
Interview Questionnaire
2 Questions
- Q1. Basic questions on Java and data structures with few analytics questions
- Q2. Basic questions
Interview Preparation Tips
Experience: 1 minute for each question. Completely technical round with questions on Java, algorithm and data structures
Duration: 1 hour 30 minutes
Total Questions: 90
Round: HR Interview
Experience: They ask about your interest, your hobbies and once you are done with this they will ask you questions on the hobbies you previously claimed you like.
Skills: Java Programming
College Name: Thapar University, Patiala
Interview Preparation Tips
Experience: In the first round there was an online test. Questions were from aptitude, general English and a simple code( very simple if you have programming skills).
Tips: It was purely a knowledge based round so everything depends on your preparation level and a bit confidence.
Round: Technical Interview
Experience: In technical round interview the process was like this...
I entered in room and greeted interviewer and he asked me to sit down. I handed over my resume to him. His first question was tell me about yourself. Then my projects. After that he came on programming, He asked me very basic concept about C++. Questions were like what is polymorphism, What is encapsulation. He also asked program of fibonacci series. After all these question he again looked at my resume and asked me 'why your CGPA is low?' I said that when i was in my first year i had interest in electronics but later when i encountered with programming i decided to have my career in this field so i could not concentrate on my core subjects.
Tips: C++ is '''''must''''' for Virtusa if you are from electronics . I didn't know data structure but c++ was on my fingers. Answer question with confidence.
Round: HR Interview
Experience: HR interview was really cool. Interview asked me about myself, my family, real life applications of my project. After that he came on real stuff. He asked question like why do you want to join virtusa? I said virtusa is this .. virtusa is this.....and many more..and in last i said this is i want to join virtusa. Next question was ' what do think about dowry?'. At first i was surprised to hear this question but i realized that interview only want to check my ability to speak on random topic. I answered the question by criticizing dowry and he was pleased to hear my answer. After one or two general HR question like location preference , he told me that your interview is over please wait outside for result. It was really nice to meet you . Thank you.
Tips: Never stop speaking in HR interview. They only check your ability to speak on random topics and their general HR question. I was continuously speaking ...please do not bother about grammar while speaking ...just speak with confidence(relevant).
General Tips: prepare c , c++ and ability to speak in front of interviewer.
Skills: Basic Coding, Aptitude, 1)communication
College Name: NIT Jalandhar
Software Developer Interview Questions & Answers
Virtusa Consulting Services
avinash patnala
posted on 13 Jan 2015
Interview Preparation Tips
Experience: Quite easy..It contains mcq and one programming question. MCQ covers databases,sql,software testing,c++
Tips: You can easily pass the test,no need to worry
Round: Interview
Experience: Questions are among databases and java,they will ask u fav subj and asks questions in that
Tips: Through with ur fav subject..be confident, simple anad basic questions,try to solve secreening test question using java language
Round: Interview
Experience: Its better to say technical only,the hr also asks about test pattren.programming question.then normal HR questions
Tips: It better to do some research about the company,overall it's easy and cake walk for those who are strong in java and databases
General Tips: CSE guys can easily clear that test and interview..without any hesitattion
Skills: Java,databases, SQL, C, General Aptitude
College Name: NIT Warangal
Motivation: Virtusa is emerging company
Funny Moments: In interview they asked about my girl friend,her name andwhen ur are going to marry. answer them in a funny way with smile in your face
I applied via Walk-in and was interviewed before Jan 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. About communication skills & professional experience.
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. How and when API controller class instance generated in c#
- Ans.
API controller class instance is generated when a request is made to the API endpoint.
API controller class is responsible for handling incoming requests and returning responses.
Instance of API controller class is generated by the ASP.NET Core framework when a request is made to the API endpoint.
API controller class instance is disposed of after the request has been processed.
API controller class can be customized and c
Skills evaluated in this interview
I applied via Naukri.com and was interviewed before Sep 2019. There were 6 interview rounds.
Interview Questionnaire
3 Questions
- Q1. IQ Test
- Q2. Machine Test
- Q3. Face To Face
Interview Preparation Tips
1. IQ Test
2. Machine Test
3. Face to Face
IQ Test is not so tough but prepare well Machine Test
Machine Test Question are like :-
Q.1 - We declare a variable in C++ like "is_this_a_variable" and in Java like "IsThisAVariable". There is underscore in between every word and first alphabet of every word is in lowercase in C++ and in Java first alphabet is in capital without underscore. Create a program in which if user input a string in a C++ variable format it will convert the input in java variable format.
Q2. Count the frequency of a string.
user input string - pqhphi
output-
p - 2
q - 1
h - 2
i - 1
Be strong in algorithms and data structure.
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