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I was interviewed in Aug 2017.
I am a passionate software developer with experience in Java, Python, and web development.
Experienced in Java, Python, and web development
Passionate about coding and problem-solving
Strong communication and teamwork skills
Always eager to learn and adapt to new technologies
I was interviewed before Mar 2021.
Round duration - 60 minutes
Round difficulty - Medium
The interviewer was really cool. He realized that I mostly work on java applications so he chose to ask me stuff related to that. He didn't want me to know the answer well but just wanted me to approach to it, maybe think more. He went through my resume back and forth and asked mostly about all my projects and their logic and how could I take them to the next level.
Tips: Be confident. Its okay not to know any answer, just try giving it a shot in the approach.
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
Abstract class can have constructors, member variables, and methods with implementation.
Interface can only have abstract methods and constants.
A class can implement multiple interfaces but can only extend one abstract class.
Example: Abstract class - Animal with abstract method 'eat', Interface - Flyable with m
final is a keyword used to declare constants, finally is a block used in exception handling, and finalize is a method used for cleanup.
final is a keyword used to declare constants in Java, meaning the value cannot be changed once assigned. Example: final int x = 10;
finally is a block used in exception handling to ensure a piece of code is always executed, whether an exception is thrown or not. Example: try { // code } ...
Private restricts access to the class itself, while final prevents inheritance and method overriding.
Private access modifier restricts access to the class itself, while final access modifier prevents inheritance and method overriding.
Private members are only accessible within the same class, while final classes cannot be extended and final methods cannot be overridden.
Example: private int num; - num can only be accesse...
Establishing a JDBC connection involves loading the driver, creating a connection, creating a statement, executing queries, and handling exceptions.
Load the JDBC driver using Class.forName() method
Create a connection using DriverManager.getConnection() method
Create a statement using connection.createStatement() method
Execute queries using statement.executeQuery() method
Handle exceptions using try-catch blocks
JSON is a lightweight data interchange format used to store and transmit data between a server and a web application.
JSON stands for JavaScript Object Notation.
It is easy for humans to read and write, and easy for machines to parse and generate.
JSON is language-independent and can be used with any programming language.
Example: {"name": "John", "age": 30}
Example: [{"name": "Alice", "age": 25}, {"name": "Bob", "age": 35}
Garbage collection in Java is the process of automatically managing memory by deallocating objects that are no longer needed.
Garbage collection helps in preventing memory leaks by reclaiming memory used by objects that are no longer referenced.
Java uses a garbage collector to automatically manage memory, unlike languages like C++ where memory management is manual.
Garbage collection in Java can be triggered by calling S...
Round duration - 30 minutes
Round difficulty - Easy
I wouldn't say it went great but it was fine. I did not think I would clear it as for most of the questions the interviewer seemed disappointed and wanted more out of me.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
posted on 19 Aug 2016
I am a software developer with experience in Java and Python.
Proficient in Java and Python programming languages
Experience in developing web applications using Spring framework
Familiarity with database management systems such as MySQL and MongoDB
I have achieved success in developing and implementing various software solutions.
Developed a web application that increased user engagement by 30%
Implemented a new feature that reduced system downtime by 50%
Created a mobile app that received 4.5-star rating on app stores
Led a team of developers to successfully complete a project within a tight deadline
I work on a variety of projects ranging from web development to mobile app development.
Web development using HTML, CSS, JavaScript, and various frameworks such as React and Angular
Mobile app development for iOS and Android using Swift, Kotlin, and React Native
Database design and management using SQL and NoSQL databases such as MySQL and MongoDB
API development and integration using REST and GraphQL
Machine learning proje...
A hardworker puts in more effort, while a smartworker works efficiently and effectively.
A hardworker may spend more time on a task, while a smartworker finds ways to complete it faster.
A hardworker may rely on brute force, while a smartworker uses their skills and knowledge to solve problems.
A hardworker may struggle with prioritization, while a smartworker knows how to focus on the most important tasks.
A hardworker ma...
Zuckerberg is in news due to Facebook's handling of user data and misinformation.
Facebook's role in the 2016 US Presidential election
Cambridge Analytica scandal
Testimony before US Congress
Ongoing debate on social media regulation
I am a software developer with experience in Java and Python.
I have a Bachelor's degree in Computer Science.
I have worked on various projects involving web development and data analysis.
I am proficient in Java and Python programming languages.
I am a quick learner and enjoy working in a team environment.
My favorite project is the e-commerce website I developed for a local business.
I enjoyed working on the front-end design and user experience.
I implemented a secure payment gateway and order tracking system.
The website increased the business's online sales by 50%.
I received positive feedback from the client and their customers.
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
Inheritance allows code reuse and promotes code organization.
The existing class is called the parent or superclass, and the new class is called the child or subclass.
The child class inherits all the properties and methods of the parent class and can also add its own unique properties and ...
finally is a keyword used in try-catch block, finalize is a method in Object class, and final is a keyword used for declaring constants.
finally is used to execute a block of code after try-catch block
finalize is called by garbage collector before destroying an object
final is used to declare a constant variable or to make a class uninheritable
Private keyword restricts access to member functions within the class while final keyword prevents overriding of functions.
Private keyword is used to hide the implementation details of a class from the user.
Final keyword is used to prevent the user from overriding a function in a subclass.
Using private and final keywords together can ensure that the implementation details of a class are not modified by the user.
An interface defines a set of methods that a class must implement.
An interface is declared using the 'interface' keyword.
All methods in an interface are public and abstract by default.
A class can implement multiple interfaces.
Interfaces can also extend other interfaces.
Example: public interface MyInterface { void myMethod(); }
Abstract class is a class with some implementation while Interface is a contract with no implementation.
Abstract class can have constructors while Interface cannot
Abstract class can have non-abstract methods while Interface cannot
A class can implement multiple interfaces but can only inherit from one abstract class
Abstract class is used when there is a need for common functionality among related classes while Interface...
Inheritance types in Java
Java supports single and multiple inheritance through classes and interfaces respectively
Single inheritance is when a class extends only one parent class
Multiple inheritance is when a class implements multiple interfaces
Java also supports hierarchical inheritance where multiple classes extend a single parent class
Java does not support multiple inheritance through classes to avoid the diamond pr
Order of catch blocks in a try block in Java
Specific catch blocks should come before general catch blocks
If general catch block comes before specific catch block, it will result in a compile-time error
If multiple catch blocks are present, only the first matching catch block will be executed
Garbage collection is an automatic memory management process that frees up memory occupied by objects that are no longer in use.
Garbage collection is used in programming languages like Java, C#, and Python.
It helps prevent memory leaks and reduces the risk of crashes due to memory exhaustion.
Garbage collection works by identifying objects that are no longer in use and freeing up the memory they occupy.
There are differe...
Code for connecting a Java application to a database
Import the JDBC driver for the specific database
Create a connection object using the DriverManager class
Create a statement object to execute SQL queries
Execute the query and retrieve the results
Close the connection and release resources
JSON stands for JavaScript Object Notation, a lightweight data interchange format.
JSON is used to transmit data between a server and a web application, as an alternative to XML.
It is easy to read and write for humans and easy to parse and generate for machines.
JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C family of languages.
Example: {"name"
I applied via Naukri.com and was interviewed in Apr 2020. There were 5 interview rounds.
I applied via Naukri.com and was interviewed before May 2020. There were 5 interview rounds.
I was interviewed before Mar 2021.
Round duration - 60 minutes
Round difficulty - Easy
This was a technical round with questions on DBMS.
Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle.
Data integrity ensures that data is accurate and consistent in storage and transmission.
It involves maintaining the quality and reliability of data over time.
Methods for ensuring data integrity include checksums, encryption, and error detection codes.
Examples of data integrity violations include data corruption, unautho
A trigger is a special type of stored procedure that automatically executes when certain events occur in a database.
Triggers are used to enforce business rules, maintain data integrity, and automate repetitive tasks.
They can be triggered by INSERT, UPDATE, or DELETE operations on a table.
Examples of triggers include auditing changes to a table, updating related tables when a record is modified, or enforcing referential
Clustered indexes physically order the data in the table, while non-clustered indexes do not.
Clustered indexes determine the physical order of data in the table, while non-clustered indexes do not.
A table can have only one clustered index, but multiple non-clustered indexes.
Clustered indexes are faster for retrieval of data, especially range queries, compared to non-clustered indexes.
Non-clustered indexes are stored se...
Round duration - 60 minutes
Round difficulty - Easy
Technical interview round with questions on DBMS.
UNION combines and removes duplicates, UNION ALL combines without removing duplicates.
UNION merges the result sets of two or more SELECT statements and removes duplicates.
UNION ALL merges the result sets of two or more SELECT statements without removing duplicates.
UNION is slower than UNION ALL as it involves removing duplicates.
Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;
Example: SELECT column...
A cursor in PL/SQL is used to retrieve and process multiple rows of data one at a time.
Allows iteration over a result set
Retrieves data row by row
Can be used to update or delete rows in a table
Must be declared, opened, fetched, and closed
SQL query to fetch the nth highest salary from a table
Use the ORDER BY clause to sort salaries in descending order
Use the LIMIT clause to fetch the nth highest salary
Round duration - 30 minutes
Round difficulty - Easy
This was a managerial round with typical behavioral problems.
Tip 1 : Since this was a SQL post, I would suggest you to get the basics intact and try practicing few queries.
Tip 2 : Must do Previously asked Interview as well as Online Test Questions.
Tip 3 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I was interviewed in Oct 2021.
Round duration - 105 minutes
Round difficulty - Medium
There were 3 problems .
One was easy but the other two were of medium level.
Given an array representing positions of stalls and an integer ‘K’ representing the number of aggressive cows, determine the largest minimum distance between any two cows ...
The problem requires assigning aggressive cows to stalls in a way that maximizes the minimum distance between any two cows.
Sort the array of stall positions in ascending order.
Use binary search to find the largest minimum distance between cows.
Check if it is possible to assign cows with this minimum distance by iterating through the sorted array.
If it is possible, update the maximum distance and continue binary search ...
The city of Ninjaland is represented as an unweighted graph with houses and roads. There are 'N' houses numbered 1 to 'N', connected by 'M' bidirectional roads. A road...
The problem is to find the shortest path between two houses in an unweighted graph.
The graph represents the city of Ninjaland with houses connected by roads.
The input consists of the number of test cases, number of houses and roads, starting and ending house, and the roads between houses.
The output is a vector of nodes representing the shortest path from the starting house to the ending house.
If there are multiple shor...
Given a positive integer N
, compute the total number of '1's in the binary representation of all numbers from 1 to N. Return this count modulo 1e9+7 because the result can...
The task is to count the total number of '1' in the binary representation of all numbers from 1 to N.
Convert each number from 1 to N into its binary representation
Count the number of '1' bits in each binary representation
Sum up the counts of '1' bits for all numbers
Return the sum modulo 1e9+7
Round duration - 60 minutes
Round difficulty - Easy
The interviewer was very polite and straightforward.
Firstly he introduced himself and then asked me to introduce myself and then he jumped to the coding problems.
After the coding problems, he asked some questions from the OS and DBMS.
You are given a string of length N
. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...
The task is to reverse the words in a given string, removing any leading or trailing spaces and replacing multiple spaces between words with a single space.
Split the string into words using spaces as delimiters
Reverse the order of the words
Join the reversed words with a single space between them
Remove any leading or trailing spaces
You are provided with a linked list containing 'N' nodes and an integer 'K'. The task is to reverse the linked list in groups of size K, which means reversing the nodes ...
The task is to reverse a linked list in groups of size K.
Iterate through the linked list in groups of size K
Reverse each group using a helper function
Connect the reversed groups to form the final reversed linked list
Round duration - 60 minutes
Round difficulty - Medium
The interviewer was very polite and straightforward, firstly he introduce himself and then ask me to introduce myself and then ask some ques on my projects and then he jumps to the coding problems.
Given a string STR
consisting of both lower and upper case characters, your task is to remove consecutive duplicate characters from the string a...
The task is to remove consecutive duplicate characters from a given string and return the new string.
Iterate through the characters of the string
Compare each character with the next character
If they are the same, skip the next character
If they are different, add the current character to the new string
Return the new string
Given an N*M matrix filled with integer numbers, determine the maximum sum that can be obtained from a path starting from any cell in the first row to any cell in the last row...
The question asks to find the maximum sum that can be obtained from a path starting from any cell in the first row to any cell in the last row of a given matrix.
Iterate through each cell in the first row and calculate the maximum sum path ending at that cell
For each cell, calculate the maximum sum path ending at that cell by considering the three possible directions
Store the maximum sum path ending at each cell in a se...
Tip 1 : Deep knowledge of the projects mentioned in your resume is a must.
Tip 2 : Practice must do GFG coding questions.
Tip 3 : Practice as many problems as you can from Leetcode.
Tip 1 : Mention 1 or 2 projects in your resume.
Tip 2 : Don't put false things in your resume.
I applied via Company Website and was interviewed in Nov 2024. There were 4 interview rounds.
Directions: Each of the following question has a question and two statements labelled as (i) and (ii). Use the data/information given in (i) and (ii) to decide whether the data are sufficient to answer the question record your answer as
A) If you can get the answer from (1)alone but not from (2)
B) If you can get the answer from (2)alone but not from (1)
C) If can get the answer from (1)and (2)together ,although neither statement by itself suffice
D) If statement (1)alone suffices and statement (2) alone also suffice.
E) If can\'t get the answer from statements (1) and (2) together and you need more data.
Copyright protection is given for a work having originality,i.e. it should be from the author and must have minimum degree of creativity. So it is the author who is the real creator of the work thereby first owner of the copyright and Indian law recognizes author as the firstowner of the copyright .But by the term ‘ownership it means it includes not only theauthor ,but also assignee and can even a legal entity even though not defined in the !ct. InBern convention the term !uthor is not defined, instead it says that the person under whose name the work is disclosed, which implies that it is not necessary that always theauthor should be the owner. "owever Indian copyright !ct defines the tern ‘!uthor withrespect to various works, but still leaves some problems. It becomes more comple# in theconte#t of changing technologies, i.e. cinematographic works, sound recording, broadcasting etc which is a combination of different works, also when author does thework in the course of employment. $hen new technologies emerge, different mode of communication simultaneously arise and the e#ploitation of the copyright by wayof assignment %licensing will add economic benefits to the copyright owner and the provisions of assignment and licensing becomes crucial. By amendments Indian Copyright!ct has taken care of such provisions, but still leaving lacunae % the role of &udiciary becomes crucial in interpreting such provisions for effectively protecting the rights of the authors.
What are the constraints and give example that's include all constraints? 2. Basic SQL queries were asked but I don't remember 3. Then asked questions from my college projects
Public, private, and protected are access modifiers used in object-oriented programming to control the visibility of class members.
Public: allows access to the member from outside the class
Private: restricts access to the member only within the class
Protected: allows access to the member within the class and its subclasses
SQL joins are used to combine rows from two or more tables based on a related column between them.
INNER JOIN: Returns rows when there is at least one match in both tables.
LEFT JOIN: Returns all rows from the left table, and the matched rows from the right table.
RIGHT JOIN: Returns all rows from the right table, and the matched rows from the left table.
FULL JOIN: Returns rows when there is a match in one of the tables.
C...
I applied via Walk-in and was interviewed before Dec 2023. There were 3 interview rounds.
The aptitude test is conducted as exam
They provide seperate topic for everyone
They give us a python task
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based on 2 reviews
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