The latest articles on DEV Community by Mohamed Saaed (@rtco2020). https://dev.to/rtco2020 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F643825%2F5beeed2e-4ad5-46da-b9b7-81794e853d93.png https://dev.to/rtco2020 en Mohamed Saaed Thu, 24 Apr 2025 05:07:54 +0000 https://dev.to/rtco2020/answer-how-to-generate-a-random-alpha-numeric-string-2nfc https://dev.to/rtco2020/answer-how-to-generate-a-random-alpha-numeric-string-2nfc <p>VOTE: one line can do the trick is much better forever,<br> how to generate a random alpha-numeric string</p> <div class="ltag__stackexchange--container"> <div class="ltag__stackexchange--title-container"> <div class="ltag__stackexchange--title"> <div class="ltag__stackexchange--header"> <img src="https://assets.dev.to/assets/stackoverflow-logo-b42691ae545e4810b105ee957979a853a696085e67e43ee14c5699cf3e890fb4.svg" alt=""> <a href="https://stackoverflow.com/questions/41107/how-to-generate-a-random-alpha-numeric-string/49056893#49056893" rel="noopener noreferrer"> <span class="title-flare">answer</span> re: How to generate a random alpha-numeric string </a> </div> <div class="ltag__stackexchange--post-metadata"> <span>Mar 1 '18</span> </div> </div> <a class="ltag__stackexchange--score-container" href="https://stackoverflow.com/questions/41107/how-to-generate-a-random-alpha-numeric-string/49056893#49056893" rel="noopener noreferrer"> <img src="https://assets.dev.to/assets/stackexchange-arrow-up-eff2e2849e67d156181d258e38802c0b57fa011f74164a7f97675ca3b6ab756b.svg" alt=""> <div class="ltag__stackexchange--score-number"> 1 </div> <img src="https://assets.dev.to/assets/stackexchange-arrow-down-4349fac0dd932d284fab7e4dd9846f19a3710558efde0d2dfd05897f3eeb9aba.svg" alt=""> </a> </div> <div class="ltag__stackexchange--body"> <p>Here's a simple one-liner using UUIDs as the character base and being able to specify (almost) any length. (Yes, I know that using a UUID has been suggested before.)</p> <pre><code>public static String randString(int length) { return UUID.randomUUID().toString().replace("-", "").substring(0, Math.min(length, 32)) + (length &gt; 32 ? randString(length - 32) : "");</code></pre>… </div> <div class="ltag__stackexchange--btn--container"> <a href="https://stackoverflow.com/questions/41107/how-to-generate-a-random-alpha-numeric-string/49056893#49056893" class="ltag__stackexchange--btn" rel="noopener noreferrer">Open Full Answer</a> </div> </div> programming howto tutorial