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I applied via Naukri.com and was interviewed in May 2022. There were 3 interview rounds.
It was easy coding test they give a array based question
posted on 23 Aug 2024
I applied via LinkedIn and was interviewed in Jul 2024. There was 1 interview round.
Developed a web application for tracking employee attendance and performance
Implemented user authentication and authorization using Spring Security
Utilized Hibernate for database interaction and data persistence
Designed and developed RESTful APIs for frontend integration
Used AngularJS for frontend development to create interactive user interfaces
I applied via Company Website and was interviewed in Nov 2024. There were 3 interview rounds.
A standard online test conducted through one of the testing platforms.
posted on 9 Oct 2024
I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.
Primitive data types are basic data types provided by the programming language, while non-primitive data types are created by the programmer.
Primitive data types include int, float, double, char, boolean, etc.
Non-primitive data types include arrays, classes, interfaces, etc.
Primitive data types store actual values, while non-primitive data types store references to objects.
Access modifiers control the visibility of classes, methods, and variables. Non-access modifiers provide additional functionality.
Access modifiers: public, private, protected, default
Non-access modifiers: static, final, abstract, synchronized
Example: public class MyClass { private int myVar; }
Java 8 features include lambda expressions, functional interfaces, streams, and more.
Lambda expressions allow concise syntax for defining anonymous functions.
Functional interfaces can have only one abstract method and are used for lambda expressions.
Streams provide a way to process collections of objects in a functional style.
Optional class helps to avoid NullPointerException by wrapping a value that may be null.
CICD tools automate the process of building, testing, and deploying code changes.
Popular CICD tools include Jenkins, GitLab CI/CD, CircleCI, and Travis CI
These tools help in automating the software development lifecycle
They enable continuous integration, continuous delivery, and continuous deployment
CICD tools help in improving code quality, reducing manual errors, and increasing development speed
Containerization is a lightweight, portable, and self-sufficient way to package and run applications.
Containerization involves encapsulating an application and its dependencies into a container image.
Containers are isolated from each other and share the host OS kernel.
Popular containerization platforms include Docker and Kubernetes.
Containerization allows for easy deployment and scaling of applications.
Indexing in SQL is a technique used to improve the performance of queries by creating a data structure that allows for faster retrieval of data.
Indexes are created on columns in a database table to speed up the retrieval of rows that match a certain condition in a query.
They work similar to the index in a book, allowing the database to quickly locate the rows that satisfy the query.
Indexes can be created using a single...
I applied via Approached by Company and was interviewed in May 2024. There were 4 interview rounds.
Microservices are a software development technique where an application is divided into smaller, independent services that communicate with each other through APIs.
Microservices are small, independent services that focus on specific business functions.
Each microservice can be developed, deployed, and scaled independently.
Microservices communicate with each other through APIs, typically using lightweight protocols like ...
Microservices architecture is a design approach where a single application is composed of small, independent services that communicate with each other.
Each microservice is responsible for a specific business function or capability
Microservices communicate with each other through APIs
Each microservice can be developed, deployed, and scaled independently
Microservices architecture promotes flexibility, scalability, and re
Microservices are connected in REST APIs using communication protocols like HTTP, messaging queues, and service discovery.
Microservices communicate with each other using HTTP requests and responses.
Messaging queues like RabbitMQ or Kafka can be used for asynchronous communication between microservices.
Service discovery tools like Eureka or Consul help in locating and connecting to different microservices.
API Gateway ca...
Creating immutable class of orders, sorting orders, finding average of lists of integers.
Create an immutable class Orders with private final fields and no setter methods.
Override equals() and hashCode() methods to ensure uniqueness of objects.
Use Collections.unmodifiableSet() to create a set of orders and Collections.sort() to sort them.
Iterate through the List of List of String of integers, convert to integers, and ca
Spring Cloud is a set of tools and frameworks for building cloud-native applications in Java.
Spring Cloud provides tools for service discovery, load balancing, configuration management, and more in microservices architecture.
It includes projects like Eureka for service discovery, Ribbon for client-side load balancing, and Config Server for externalized configuration.
Spring Cloud integrates with Spring Boot to simplify ...
Deployment build config includes settings for deploying the application.
Use tools like Maven or Gradle to manage dependencies and build the project
Specify deployment environment configurations in a separate file (e.g. application.properties)
Define build scripts for tasks like compiling, packaging, and deploying the application
Leverage CI/CD pipelines for automated builds and deployments
Given a project, you need to create logic for a service using helpers and finally give a aggregate of the final converted price .
Given few java 8 programming functions, you need to convert them to respective java 11 functions
posted on 30 Oct 2024
I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
Abstract class can have constructor, fields, and methods, while interface cannot have any of these.
A class can extend only one abstract class, but can implement multiple interfaces.
Abstract classes are used to define a common behavior among subclasses, while interfaces are used to define a contract for classes...
Handler methods in Java are methods that are responsible for handling incoming requests and generating responses.
Handler methods are typically defined in classes annotated with @Controller or @RestController.
These methods are mapped to specific URLs using @RequestMapping or other mapping annotations.
Handler methods can have parameters such as HttpServletRequest, HttpServletResponse, or model attributes.
The return value...
I applied via Naukri.com and was interviewed in Jul 2024. There were 2 interview rounds.
They asked question about myself
Gave codeing in advance java concepts
I applied via Naukri.com and was interviewed in Dec 2023. There were 2 interview rounds.
1. Find longest repeating character from back.
2. Find all non-duplicates in an array and return in sorted manner.
The class will have to provide its own implementation of the conflicting default method.
When implementing multiple interfaces with the same default method, a class must provide its own implementation of the conflicting method.
The class cannot inherit the default implementation from both interfaces.
The class can choose to implement one of the default methods and provide its own implementation for the other.
Alternatively...
Terminal operations in streams produce a result or a side effect, while intermediate operations transform or filter the data.
Terminal operations are the final operations in a stream pipeline, such as forEach, collect, or reduce.
Intermediate operations are operations that can be chained together, such as filter, map, or sorted.
Terminal operations trigger the processing of the stream and produce a result or a side effect...
try vs try-with-resources
The 'try' statement is used to define a block of code to be tested for exceptions.
The 'try-with-resources' statement is used to automatically close resources that implement the AutoCloseable interface.
Try-with-resources is more concise and less error-prone compared to try-catch-finally.
Try-with-resources can handle multiple resources in a single statement.
Iterator is a universal interface for iterating over a collection, while ListIterator is a specialized interface for iterating over lists.
Iterator can only move forward, while ListIterator can move in both directions.
ListIterator has additional methods like previous(), hasPrevious(), and add().
ListIterator is only available for List implementations, while Iterator can be used with any collection.
Projections in Spring Data JPA allow customizing the shape of the data returned from a query.
Projections are used to retrieve specific fields or a subset of fields from an entity.
They help in reducing the amount of data transferred over the network.
Projections can be defined using interfaces or classes.
They can be used with both JPQL and native SQL queries.
Projections can be used to fetch related entities as well.
The two types of compiler in Angular are JIT (Just-in-Time) compiler and AOT (Ahead-of-Time) compiler.
JIT compiler compiles the code at runtime in the browser.
AOT compiler compiles the code before the application is deployed to the browser.
JIT compilation is slower but allows for faster development and debugging.
AOT compilation is faster but requires additional build step before deployment.
Data binding in Angular allows automatic synchronization of data between the model and the view.
Interpolation: {{ }} - binds data from the component to the view
Property binding: [] - binds data from the component to an element property
Event binding: () - binds an event from the view to a method in the component
Two-way binding: [()] - combines property and event binding to achieve two-way data flow
Promises are used for asynchronous programming in JavaScript, while Observables are used for reactive programming.
Promises represent a single value that may be available now or in the future.
Observables represent a stream of values that can be emitted over time.
Promises are eager, meaning they start executing as soon as they are created.
Observables are lazy, meaning they only start executing when subscribed to.
Promises...
Constructor is a special method used to initialize an object, while ngOnInit is a lifecycle hook in Angular.
Constructor is used to create and initialize an object of a class.
ngOnInit is a lifecycle hook in Angular that is called after the component is initialized.
Constructor is defined using the constructor keyword, while ngOnInit is a method defined in the component class.
Constructor is called only once during the cre...
Inline templates are used for small, simple templates, while external templates are used for larger, complex templates.
Inline templates are defined within the component's TypeScript file using the template property.
External templates are defined in separate HTML files and linked to the component using the templateUrl property.
Inline templates are useful for small components or when the template is simple and doesn't re...
HttpClient module is used for http calls in Angular.
HttpClient module is part of the @angular/common/http package.
It provides a simplified API for making HTTP requests.
It supports various HTTP methods like GET, POST, PUT, DELETE, etc.
It also supports features like request/response headers, query parameters, error handling, etc.
Example: import { HttpClient } from '@angular/common/http';
Good coding questions related array and string
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