
regular expressions 101
rubular
Expresso
RegEx Generator
Regex Crossword
i Hate Regex
RegexPlanet Ruby
RegExr.com is an online tool to learn, build, and test Regular Expressions.

Java4s
Dzone
manik-hot-deploy
Gradle
Shippable
Bamboo
Bitrise
Codejava is a web-based platform that offers a range of Java programming tutorials for both students and developers to polish their skills.

Which is more popular?
Based on our record, RegExr seems to be a lot more popular than Codejava. While we know about 368 links to RegExr, we've tracked only 4 mentions of Codejava.
Website, pricing, platforms and company facts side by side.
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| Website | regexr.com | codejava.net |
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| Company | Startup from the United States | — |
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What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Codejava yet.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using RegExr and Codejava. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Use Online Tools: There are many online regex testers and visualizers that can help you see how your patterns match against sample text. These tools often provide explanations for each part of the regex. I personally use... - Source: dev.to / over 1 year ago
However - here it becomes weird - when testing the original regex rule (the first one, without the \u00A0 part) on the same string in an interactive visualiser (https://regexr.com/ for instance), there is a match:. - Source: dev.to / about 2 years ago
Learned regex in the 90's from the Perl documentation, or possibly one of the oreilly perl references. That was a time where printed language references were more convenient than searching the internet. Perl still includes a shell... - Source: Hacker News / over 2 years ago
IDK if his Udemy course ("Spring Boot E-Commerce Ultimate Course") is relevant to what you are trying to learn, but I want to commend Nam Ha Minh as someone who has answered every question I asked about the course material within 24... Source: over 4 years ago
From what I read, there are examples to work though, so you will get hands-on coding experience. Even more important, one review refers to the author replying to a reader with a question about one of the examples. Finding teachers that... Source: almost 5 years ago
Of the various tutorial sites, I have found the content at codejava.net to be reliable and well written. The author doesn't just regurgitate documentation specs and examples, but puts time into creating additional, original examples that... Source: almost 5 years ago
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Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.
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Java4s is a web-based java tutorial site that is created for developers and students.
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Dzone is one of the most leading websites that offer a range of programming, development, and DevOps news, tutorials, and tools for beginners to expert developers.
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The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.
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Manik Hot-Depoy is an eclipse plugin for hot deploy of web applications
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