r/java
Java News/Tech/Discussion/etc. No programming help, no learning Java
Founded March 2008 · Public — anyone can post
News, Technical discussions, research papers and assorted things of interest related to the Java programming language NO programming help, NO learning Java related questions, NO installing or downloading Java questions, NO JVM languages - Exclusively Java
Members
407,317
407K
Online now
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not captured in the last snapshot
Posts per day
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no sample yet
Comments per post
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no sample yet
Growth · 7d
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not enough history yet
Growth · 30d
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not enough history yet
Promo tolerance
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not assessed yet
Last post
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no sample yet
Distinct posters
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no sample yet
Tracking since Sep 2 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Similar by content
Communities that discuss what r/java discusses.
A subreddit for all questions related to programming in any programming language (Contributions are only allowed in English!).
Anything software-related. Please follow our rules to avoid getting punished.
Shared audience
Posters in r/java also post in…
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##### Welcome to /r/DevOps > > [](#icon-exclamation-sign) */r/DevOps is a subreddit dedicated to the DevOps movement where we discuss upcoming technologies, meetups, conferences and everything that brings us together to build the future of IT systems* > > [](#icon-question-sign) What is DevOps? [Learn about it on our wiki!](/r/DevOps/wiki) > > [](#icon-picture) [Traffic stats & metrics](http://www.reddit.com/r/devops/wiki/index#wiki_metrics) ##### [](#icon-info) Rules and guidelines > > [](
A place to share, discuss, discover, assist with, gain assistance for, and critique self-hosted alternatives to our favorite web apps, web services, and online tools.
See the full lists on similar subreddits.
r/java — frequently asked
How many members does r/java have?
r/java has 407,317 members as of our most recent crawl on Sep 22. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/java growing?
We don't have 30 days of snapshot history for r/java yet, so we're not going to invent a growth number. We've been tracking it since Sep 2; the chart fills in as history accumulates.
How active is r/java?
We don't have a reliable posting-rate sample for r/java yet. Subscriber count alone is a poor guide to whether a community is active, so treat this one as unverified until the next sample lands.
When was r/java created?
r/java was founded in March 2008 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Can I promote my product in r/java?
We don't have a promo-tolerance read for r/java yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/java for mentions?
Hit Watch on this page. Prowlo starts crawling r/java into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/java's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/java's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
Read-only · Human-in-the-loop
Prowlo never posts for you
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