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IOC container is a software design pattern that manages the instantiation and configuration of objects.
IOC stands for Inversion of Control
IOC container is used to decouple the execution of a task from its implementation
It allows for easier testing and maintenance of code by promoting loose coupling
Examples of IOC containers include Spring Framework's ApplicationContext and Unity Container in .NET
To find the second highest number from a list of numbers.
Sort the list in descending order
Return the second element in the sorted list
The n+1 problem in Hibernate refers to the issue of making n+1 database queries instead of a single query when fetching related entities.
Occurs when fetching a collection of entities and then accessing a lazy-loaded association for each entity individually
Can be resolved by using fetch joins or batch fetching to reduce the number of queries
Example: Fetching a list of orders and then accessing the customer for each orde
I applied via Naukri.com and was interviewed in Mar 2024. There were 3 interview rounds.
I appeared for an interview in Apr 2024.
I appeared for an interview before Feb 2024.
Philips Innovation Campus interview questions for designations
I applied via Referral and was interviewed before Mar 2023. There were 3 interview rounds.
Coding test on DSA&Algo
I applied via Approached by Company and was interviewed before Jun 2021. There were 4 interview rounds.
I worked on the Observer design pattern
Observer pattern is used for one-to-many object dependency
It defines a one-to-many relationship between objects
When one object changes state, all its dependents are notified and updated automatically
Example: A weather station that notifies its observers (display devices) when the temperature changes
Multi-threaded program to print even and odd numbers up to 100
Create two threads, one for even numbers and one for odd numbers
Use a loop to iterate through numbers 1 to 100
In each iteration, check if the number is even or odd
Print the number in the corresponding thread
Join the threads to ensure all numbers are printed in order
Top trending discussions
I applied via Approached by Company and was interviewed in Mar 2024. There was 1 interview round.
Sort an array of strings in descending order
Use the sort() method with a custom compare function to sort the array in descending order
Example: ['apple', 'banana', 'cherry'].sort((a, b) => b.localeCompare(a)) will result in ['cherry', 'banana', 'apple']
I applied via Company Website and was interviewed in Jul 2023. There were 2 interview rounds.
Iterator and generator are used in Python to iterate over a sequence of elements. .pyc files are compiled Python files.
Iterator in Python is an object that enables a programmer to traverse a container, like a list.
Generator in Python is a function that returns an iterator. It generates values using the yield keyword.
Example of iterator: for num in range(5): print(num)
Example of generator: def square_numbers(n): for i i...
Bug life cycle is the process of identifying, reporting, fixing, retesting, and closing bugs in a software project.
Bug is identified by a tester during testing phase
Bug is reported to the development team
Development team fixes the bug
Tester retests the bug to ensure it is fixed
Bug is closed once confirmed fixed
I applied via Referral and was interviewed in Dec 2022. There were 5 interview rounds.
call, bind, and apply are methods used to manipulate the value of 'this' in JavaScript functions.
Call invokes a function with a specified 'this' value and arguments provided individually.
Bind creates a new function that, when called, has its 'this' keyword set to the provided value.
Apply invokes a function with a specified 'this' value and arguments provided as an array.
All three methods are used to control the value o...
Angular is a front-end framework, Node.js is a back-end runtime environment, and Express.js is a web application framework for Node.js.
Angular is used for building dynamic single-page applications (SPAs) with HTML, CSS, and TypeScript.
Node.js is used for building scalable network applications and is based on the V8 JavaScript engine.
Express.js is a minimal and flexible Node.js web application framework that provides a ...
I applied via LinkedIn and was interviewed in Jan 2023. There were 3 interview rounds.
Java 8 and 11 introduced several new features and improvements to the language.
Java 8 introduced lambda expressions, functional interfaces, streams, and default methods.
Java 11 introduced local variable syntax for lambda parameters, HTTP client API, and new string methods.
Example of Java 8 lambda expression: (x, y) -> x + y
Example of Java 11 HTTP client API: HttpClient client = HttpClient.newHttpClient();
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