• Feed
  • Discussions
Key-Value Pair

Key-Value Pair

#key-value-pair
0 followers·3 articles

Key-Value Pair

#key-value-pair·0 followers·3 articles
Key-Value Pair
Yatin B.
Yatin B.
blogs.stackedmind.com·May 08, 2025
May 08, 2025

How to Check if a Value Exists in a JSON Array for a Particular Key

Date: 2023-10-30 This article demonstrates how to check for the existence of a key-value pair within a JSON array using Java's Jackson and Gson libraries. Both libraries are powerful tools for JSON processing, with Jackson offering superior performa...

Discuss
json processing
Partha Choudhury
Partha Choudhury
blog.partha51613.com·Apr 26, 2024
Apr 26, 2024

Internal workings of a HashMap: How it works?

A HashMap is a part of the Java's Collection and is used to store key-value pairs. Each key is mapped to a single value, and while duplicate keys are not allowed, duplicate values are permitted. We will learn about how a HashMap works internally, how...

Discuss·42 reads
Java Collections Framework
Abi Farhan
Abi Farhan
abifarhan.hashnode.dev·May 14, 2023
May 14, 2023

Demystifying Hash Tables: Boosting Data Efficiency with Smart Key-Value Pairing

Introduction In today's data-driven world, efficient storage and retrieval of information is crucial for optimal performance. Hash tables provide an efficient solution for storing and retrieving key-value pairs. The blog post aims to demystify hash t...

Demystifying Hash Tables: Boosting Data Efficiency with Smart Key-Value Pairing
Discuss·22 reads
data structures

Changelog

New steps component and improved accessibility on Hashnode's blog and docs product.

New steps component and improved accessibility on Hashnode's blog and docs product.

Nov 05, 2024·
new

Trending Articles

The Stablecoin Surge: How CryptoXpress Is Leading the Charge Toward Financial Liberation

Naomi Antia Benson·55 reads

CryptoXpress: Because Managing Crypto Shouldn't Feel Like Filing Taxes

Prochino·73 reads

The DePIN Revolution: Mapping the World and Earning Onchain with $WIFI.

Patience Uyire·62 reads

Top commenters this week

Sumayya Irfan
Sumayya Irfan
Marketer lab
Marketer lab
Rishav
Rishav
Astha Sharma
Astha Sharma
Deepak Kumar
Deepak Kumar

Writing Challenges

#2Articles1Week Challenge

Become better at technical writing; accept Hashnode's writing challenge for four weeks.

#2Articles1Week Challenge
#WomenWhoTech

Share your story, achievements, or experiences as a woman, non-binary folk in tech or as a #WomenWhoTech ally!

#WomenWhoTech
Self Starter

Publish your first article on Hashnode and become a self starter!

Self Starter
Serial Blogger

Publish an article every day for 7 days and earn a cool serial blogger badge!

Serial Blogger
Talk of the town

Write a story that drives amazing engagement on Hashnode and become the talk of the town!

Talk of the town
Word Warrior

Write an in-depth article on your Hashnode blog that's more than 2000 words and become a word warrior!

Word Warrior