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HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where the pair will be stored.
If multiple keys hash to the same index, a collision occurs and the pairs are stored in a linked list at that index.
To...
Using Java 8 stream to separate odd and even numbers in an array.
Use stream filter to separate odd and even numbers.
Use stream collect to collect odd and even numbers into separate lists.
Top trending discussions
posted on 18 Feb 2023
I applied via Recruitment Consulltant and was interviewed in Aug 2022. There were 4 interview rounds.
posted on 6 Jan 2023
I applied via Approached by Company and was interviewed in Jul 2022. There were 3 interview rounds.
Questions related to web development and architecture
Session is a way to store user-specific data on the server-side
Session can be stored in-memory, on the server's file system, or in a database
3-tier architecture separates presentation, application logic, and data storage
3-layered architecture separates presentation, business logic, and data access
SOA is a design pattern where software components communicate with each...
I applied via LinkedIn and was interviewed before Jan 2023. There was 1 interview round.
I applied via Company Website and was interviewed before May 2023. There was 1 interview round.
I had to evaluate a software and let them understand where this software could be implemented and the pros and cons of the software.
posted on 29 Nov 2022
I applied via Approached by Company and was interviewed before Nov 2021. There were 2 interview rounds.
Array and OOPS concept. Given set of questions to solve with each oops concept
Inheritance in car model refers to the ability of a new car model to inherit features and characteristics from an existing car model.
Inheritance allows for the creation of a new car model that shares common features with an existing car model
The new car model can add or modify features inherited from the existing car model
For example, a new sports car model can inherit features from a base car model such as engine, tra...
posted on 19 Jul 2024
I applied via campus placement at Anna University and was interviewed in Jun 2024. There were 2 interview rounds.
Puzzles, speed, logical questions
Create a procedure to sort an array of integers in ascending order.
Declare a function that takes an array of integers as input
Implement a sorting algorithm like bubble sort, selection sort, or insertion sort
Return the sorted array
Creating and declaring XML involves defining the structure and content of the XML document.
Define the XML version and encoding at the beginning of the document
Declare the root element and any nested elements with opening and closing tags
Include attributes within the opening tag to provide additional information
Use self-closing tags for elements without content
Example:
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