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TheAlgorithms/Java

All Algorithms implemented in Java

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TheAlgorithms/Java has 66k+ stars and 21k+ forks on GitHub, is written in Java, and was last pushed on Oct 16, 2026. Data as of . Signed-in members get hourly updates — create a free account.

Summary Information

Updated 2 hours ago
Type:Curated List / Learning ResourceCategory(s):Interview Prep & AlgorithmsLearning & Resources
Added to GitGenius on August 30th, 2026
Created on July 16th, 2016
Open Issues & Pull Requests: 8 (+0)
GitHub issues: Enabled
Number of forks: 21,276
Total Stargazers: 66,380 (+0)
Total Subscribers: 2,166 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 16.3 hours
Mean response time: 5.0 days
90th percentile: 12.6 days
Tracked items: 255

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Maintainer activity

11 people did triage or write work on this repository in the last 12 months.

Counts unlabeled, assigned, unassigned, milestoned, demilestoned, locked, unlocked over the last 12 months. These are issue and pull request events that require triage or write permission. Commits and code review are not counted. labeled and renamed are excluded because GitHub issue forms record the issue author as the actor. Figures from October 18, 2026. This count is not comparable across projects: each project's automation decides which of these events a person emits. How this is counted.

How this project is maintained

About 11% of issues opened in the past year have never received a reply. 96% of issues opened in the past year have since been closed. Three people close 75% of everything that gets resolved.

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Issue Activity (beta)

Open issues: 4
New in 7 days: 0
Closed in 7 days: 0
Avg open age: 104 days
Stale 30+ days: 1
Stale 90+ days: 0

Recent activity

Opened in 7 days: 0
Closed in 7 days: 0
Comments in 7 days: 0
Events in 7 days: 0

Top labels

  • enhancement (166)
  • stale (82)
  • awaiting triage (52)
  • bug (18)
  • good first issue (8)
  • help wanted (7)
  • duplicate (3)
  • docs (2)

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Detailed Description

The Algorithms - Java is an educational algorithm library that collects implementations of algorithms and data structures in Java.

The project addresses the need for learning resources by providing runnable, editable implementations of algorithms across multiple categories including sorting, searching, and data structure operations. It explicitly targets educational purposes rather than production use, acknowledging that implementations may prioritize clarity over the efficiency of standard library alternatives. The project supports contribution through an integrated development environment accessible via a single click, lowering barriers to participation.

This tool suits developers learning algorithms and data structures, students studying computer science fundamentals, or anyone seeking reference implementations to understand how algorithms work. The project is not intended as a replacement for optimized standard library functions in production code. Contributors should review the contribution guidelines before submitting changes, and the full list of implemented algorithms is available in the project's directory.

The maintainers respond to issues and pull requests within a day. Work in the issue tracker centers on enhancement requests, triage of new submissions, and bug reports.