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posted on 16 Sep 2021
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posted on 11 Apr 2023
Counting characters using streams in Java
Use the chars() method to convert the string to an IntStream of characters
Use the count() method to count the number of characters in the stream
posted on 21 Dec 2022
Explanation of linked list reversal and RabbitMQ
Linked list reversal can be done iteratively or recursively
Iterative reversal involves changing the pointers of each node to point to the previous node
Recursive reversal involves calling the function recursively on the next node and changing its pointer to the current node
RabbitMQ is a message broker that allows for asynchronous communication between applications
It uses a...
posted on 25 Sep 2021
I applied via Campus Placement
posted on 25 Feb 2022
NA
posted on 28 Mar 2022
I applied via Approached by Company and was interviewed before Mar 2021. There were 2 interview rounds.
Implement a stack using a queue data structure.
Create two queues, q1 and q2.
Push elements into q1.
When popping, dequeue all elements from q1 and enqueue them into q2 until the last element.
Dequeue and return the last element from q1.
Swap q1 and q2 after each push or pop operation.
I applied via Campus Placement and was interviewed in Jul 2022. There were 16 interview rounds.
Sitting arrangement questions
Blood group relationship
Cloud computing Testing
HTML css java script
What is DATA base management system
A data structure is a way of organizing and storing data in a computer so that it can be accessed and manipulated efficiently.
Data structures provide a means to manage and organize data in a logical and efficient manner.
They define the relationship between the data, allowing for easy retrieval and modification.
Examples of data structures include arrays, linked lists, stacks, queues, trees, and graphs.
Java is a popular programming language known for its platform independence and extensive libraries.
Java is an object-oriented language that allows developers to write code once and run it on any platform.
It provides a robust and secure environment for developing and executing applications.
Java has a vast collection of libraries and frameworks that simplify development and enhance productivity.
It supports multithreading...
JavaScript characters include letters, numbers, symbols, and special characters.
JavaScript characters can be used to create strings, numbers, and perform operations.
Examples of JavaScript characters include 'a', '1', '$', and '&'.
A software engineer is a professional who designs, develops, and maintains software applications.
Software engineers use programming languages and tools to create software solutions.
They analyze user requirements and design software architecture.
Software engineers write code, test and debug software, and ensure its functionality.
They collaborate with other team members and follow software development best practices.
Exam...
The models of software engineering refer to different approaches or methodologies used in software development.
Waterfall model
Agile model
Iterative model
Spiral model
V-model
A risk management system is a software tool or platform that helps organizations identify, assess, and mitigate risks.
A risk management system helps organizations identify potential risks and their impact on business operations.
It assesses the likelihood of risks occurring and the severity of their impact.
The system provides tools for documenting and tracking risks, assigning responsibilities, and implementing mitigati...
An operating system is a software that manages computer hardware and software resources and provides common services for computer programs.
Manages computer hardware and software resources
Provides common services for computer programs
Controls and coordinates computer operations
Acts as an intermediary between users and computer hardware
Examples: Windows, macOS, Linux, Android, iOS
Software testing is the process of evaluating a software system to identify defects or errors.
Software testing is essential to ensure the quality and reliability of software.
It involves executing the software with the intention of finding bugs or issues.
Testing can be done manually or using automated tools.
Different types of testing include unit testing, integration testing, system testing, and acceptance testing.
Examp...
Cloud computing Testing
Blood group relationship
Sitting arrangement questions
Alphabet letter coding
Blood group relationship between parents and children
Blood group relationship between parents and children
I applied via Naukri.com and was interviewed in Oct 2020. There were 4 interview rounds.
IDisposable is an interface used to release unmanaged resources.
It is used to release unmanaged resources like file handles, database connections, etc.
It has a single method called Dispose() which is used to release the resources.
It is implemented by classes that use unmanaged resources and needs to be disposed of.
Example: SqlConnection class implements IDisposable to release the database connection.
Example: FileStream...
Dependency Injection is a design pattern that allows objects to receive dependencies rather than creating them internally.
Dependency Injection is used to reduce tight coupling between software components.
It allows for easier testing and maintenance of code.
There are three types of Dependency Injection: Constructor Injection, Setter Injection, and Interface Injection.
Frameworks like Spring and Angular provide built-in s
Concatenate the values in the given integer array with comma.
Convert the integer array to string array using Arrays.toString()
Use String.join() method to concatenate with comma
Interfaces and abstract classes are used for abstraction and defining contracts.
Interfaces are a collection of abstract methods that define a contract for a class to implement.
Abstract classes are classes that cannot be instantiated and can have both abstract and concrete methods.
Interfaces can be implemented by multiple classes, while a class can only inherit from one abstract class.
Interfaces are used for loose coupl...
No, abstract classes cannot be instantiated.
Abstract classes are incomplete and cannot be instantiated on their own.
They can only be used as a base class for other classes.
Instantiation of an abstract class will result in a compile-time error.
However, concrete classes that inherit from the abstract class can be instantiated.
SOLID is a set of principles for object-oriented programming to make software more maintainable and scalable.
S - Single Responsibility Principle
O - Open/Closed Principle
L - Liskov Substitution Principle
I - Interface Segregation Principle
D - Dependency Inversion Principle
Example: Using Single Responsibility Principle to separate UI and business logic
Example: Using Open/Closed Principle to extend functionality without mo
We used the Model-View-Controller (MVC) design pattern in our application.
MVC separates the application into three interconnected components: the model, the view, and the controller.
The model represents the data and business logic of the application.
The view displays the data to the user.
The controller handles user input and updates the model and view accordingly.
MVC promotes separation of concerns and modularity.
Examp...
posted on 16 May 2021
To upgrade an Angular project to a higher version, follow these steps:
Check the compatibility of the current project with the target version
Update the Angular CLI to the latest version
Update the dependencies in package.json
Update the Angular framework and related packages
Resolve any breaking changes and errors
Test the upgraded project thoroughly
I applied via Walk-in and was interviewed in Dec 2019. There was 1 interview round.
Types of testing include functional, performance, security, usability, and regression testing.
Functional testing ensures that the software meets the specified requirements.
Performance testing checks the system's response time and scalability.
Security testing identifies vulnerabilities and ensures data protection.
Usability testing evaluates the user-friendliness of the software.
Regression testing verifies that changes o
Smoke testing and Sanity testing are two types of software testing used to check the basic functionality of the application.
Smoke testing is a type of testing that checks whether the critical functionalities of the application are working fine or not.
Sanity testing is a type of testing that checks whether the bugs have been fixed or not after a new build is released.
Smoke testing is done to ensure that the application ...
Retesting is the process of testing a previously failed test case after the defects have been fixed.
Retesting is done to ensure that the defects have been fixed and the software is working as expected.
It is usually done after regression testing.
Retesting can be done manually or through automation.
Examples of scenarios that require retesting include fixing a bug, adding new functionality, or changing the environment.
Ret...
Software testing is the process of evaluating a software application or system to find defects and ensure it meets the specified requirements.
Testing is done to identify defects and ensure the software meets the requirements
It involves executing test cases and comparing actual results with expected results
Types of testing include functional, performance, security, and usability testing
Testing can be done manually or us...
Regression testing is the process of testing changes made to a software application to ensure that existing functionality still works.
It is performed after changes are made to the software
It ensures that existing functionality is not affected by the changes
It helps to catch any defects that may have been introduced by the changes
It can be automated to save time and effort
Examples include retesting after bug fixes, test...
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