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ITCS Java Developer Interview Questions and Answers
9 Interview questions
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 defi...
An SQL UPDATE query modifies existing records in a database table based on specified conditions.
Syntax: UPDATE table_name SET column1 = value1, column2 = value2 WHERE condition;
Example: UPDATE employees SET salary = 50000 WHERE id = 1;
Use WHERE clause to specify which records to update; otherwise, all records will be updated.
You can update multiple columns in a single query.
Example: UPDATE products SET price = 20,...
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.
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.
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 l...
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
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 cl...
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(); }
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
ITCS Java Developer Interview Experiences
1 interview found
I applied via Naukri.com
Interview Questionnaire
12 Questions
- Q1. What static block
- Q2. What difference between methid overloading and method overriding
- Q3. Can we add null value in hashmap ?
- Q4. Sql update query
- Ans.
An SQL UPDATE query modifies existing records in a database table based on specified conditions.
Syntax: UPDATE table_name SET column1 = value1, column2 = value2 WHERE condition;
Example: UPDATE employees SET salary = 50000 WHERE id = 1;
Use WHERE clause to specify which records to update; otherwise, all records will be updated.
You can update multiple columns in a single query.
Example: UPDATE products SET price = 20, stoc...
- Q5. What is testing
- Q6. Difference berween abstract class and interface
- Q7. Difference between oracle db and sql db
- Q8. Fetures of opps
- Q9. What is abstract
- Q10. What are implicite method of jsp ?
- Q11. Servlet is interface or class ?
- 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
Top trending discussions
Interview questions from similar companies
Software Developer Interview Questions & Answers
Virtusa Consulting Services
Anonymous
posted on 2 Jun 2022
I appeared for an interview before Jun 2021.
Had DSA and aptitude questions
(1 Question)
- Q1. DSA a questions, Database Questions
(1 Question)
- Q1. 5 min question and answers about company
Interview Preparation Tips
Interview Questionnaire
4 Questions
- Q1. All questions about java only. 1. Different between interface and abstract class . 2.questions on rest Threads 3.java object on hashcode 4. Previous company projects
- Q2. All about java 1. Explain collection hierarchy 2.Explain exception hierarchy 3.how many of classes in java 4.what are problem u faced while deploying the project and etc on deployment
- Ans.
Collection hierarchy in Java includes interfaces like Collection, List, Set, Queue, and Map with their respective implementations.
Collection interface is the root interface in the collection hierarchy
List interface extends Collection and allows duplicate elements, with implementations like ArrayList and LinkedList
Set interface extends Collection and does not allow duplicate elements, with implementations like HashSet a...
- Q3. What will be work if hire . And
- Q4. All about package and joining date
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.
Software Developer Interview Questions & Answers
Virtusa Consulting Services
Anonymous
posted on 15 Sep 2021
I appeared for an interview before Sep 2020.
(2 Questions)
Round duration - 90 minutes
Round difficulty - Easy
It happens in very friendly manner.
- Q1.
Paths in a Matrix Problem Statement
Given an 'M x N' matrix, print all the possible paths from the top-left corner to the bottom-right corner. You can only move either right (from (i,j) to (i,j+1)) or dow...
- Ans.
Print all possible paths from top-left to bottom-right in a matrix by moving only right or down.
Use backtracking to explore all possible paths from top-left to bottom-right in the matrix.
At each cell, recursively explore moving right and down until reaching the bottom-right corner.
Keep track of the current path and add it to the result when reaching the destination.
- Q2. Can you create 2 tables in SQL and perform different operations on them?
- Ans.
Yes, I can create 2 tables in SQL and perform operations like INSERT, SELECT, UPDATE, and DELETE.
Create Table 1: CREATE TABLE employees (id INT, name VARCHAR(50), salary DECIMAL(10,2));
Create Table 2: CREATE TABLE departments (dept_id INT, dept_name VARCHAR(50));
Insert Data: INSERT INTO employees VALUES (1, 'John Doe', 50000);
Select Data: SELECT * FROM employees WHERE salary > 40000;
Update Data: UPDATE employees SET...
Round duration - 90 minutes
Round difficulty - Medium
No problem occur very friendly environment.
(1 Question)
Round duration - 90 minutes
Round difficulty - Hard
- Q1.
Rat in a Maze Problem Statement
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...
Interview Preparation Tips
Tip 1 : Competitive programming plays a major role when you are appearing for coding rounds as a fresher. In the coding rounds, you won't get direct problems copied from Geeksforgeeks or Leetcode. You would be required to use your logical thinking to go ahead in the process. This is where competitive programming helps.
Tip 2 : Coding rounds are all about Coding + Timing. Most people fail to excel due to the pressure of a timer ticking on your head. So, instead of just solving problems, try to participate in timed contests. This will help you be used to the pressure of the timer.
Tip 3 : Many big companies like Microsoft, Amazon, and even Google expect you to be good at standard problems. So, once you are done with coding round by your logical skills and competitive programming, you must be well versed with some standard problems in order to excel.
Application resume tips for other job seekersTip 1 : Make it short, crisp, and simple. It is always good to have a 1 pager resume.
Tip 2 : Resume must comprise of the following: Educational Qualifications, Technical skills, Projects, Work experience (if any), Achievements. Other than this, you may include some extra co-curricular achievements.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed before Apr 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Technical questions
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Nov 2018. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Mainly fully technical skills -2technical +1 HR round
Interview Preparation Tips
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
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
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?
- Q5. Whats is polymorphisom?
- Q6. What is inherritance ?
- 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?
- Q9. What is your weaknesses ?
- 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?
- 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.
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