The latest articles on DEV Community by prasath_Rvg (@prasath_rvg). https://dev.to/prasath_rvg 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%2F651649%2F513d7cbb-b9cd-4d68-925b-5b2fb871f344.jpeg https://dev.to/prasath_rvg en prasath_Rvg Fri, 18 Jun 2021 12:22:23 +0000 https://dev.to/prasath_rvg/answer-5275 https://dev.to/prasath_rvg/answer-5275 <div class="ltag__stackexchange--container"> <div class="ltag__stackexchange--title-container"> <div class="ltag__stackexchange--title"> <h1> <img src="https://res.cloudinary.com/practicaldev/image/fetch/s--7Gn-iPj_--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_880/https://dev.to/assets/stackoverflow-logo-b42691ae545e4810b105ee957979a853a696085e67e43ee14c5699cf3e890fb4.svg" alt=""> <a href="https://stackoverflow.com/questions/14972032/how-to-convert-lower-case-letters-to-upper-case-letters-and-upper-case-letters/61975140#61975140" rel="noopener noreferrer"> <span class="title-flare">answer</span> re: how to convert Lower case letters to upper case letters &amp; and upper case letters to lower case letters </a> </h1> <div class="ltag__stackexchange--post-metadata"> <span>May 23 '20</span> </div> </div> <a class="ltag__stackexchange--score-container" href="https://stackoverflow.com/questions/14972032/how-to-convert-lower-case-letters-to-upper-case-letters-and-upper-case-letters/61975140#61975140" rel="noopener noreferrer"> <img src="https://res.cloudinary.com/practicaldev/image/fetch/s--Y9mJpuJP--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_880/https://dev.to/assets/stackexchange-arrow-up-eff2e2849e67d156181d258e38802c0b57fa011f74164a7f97675ca3b6ab756b.svg" alt=""> <div class="ltag__stackexchange--score-number"> 1 </div> <img src="https://res.cloudinary.com/practicaldev/image/fetch/s--wif5Zq3z--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_880/https://dev.to/assets/stackexchange-arrow-down-4349fac0dd932d284fab7e4dd9846f19a3710558efde0d2dfd05897f3eeb9aba.svg" alt=""> </a> </div> <div class="ltag__stackexchange--body"> <p>If you look at characters <code>a-z</code>, you'll see that all of them have the 6th bit is set to 1. Where in <code>A-Z</code> 6th bit is not set.</p> <pre><code>A = 1000001 a = 1100001 B = 1000010 b = 1100010 C = 1000011 c = 1100011 D = 1000100</code></pre>… </div> <div class="ltag__stackexchange--btn--container"> <a href="https://stackoverflow.com/questions/14972032/how-to-convert-lower-case-letters-to-upper-case-letters-and-upper-case-letters/61975140#61975140" rel="noopener noreferrer">Open Full Answer</a> </div> </div>