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well organized and easy to understand web building tutorials with lots of examples of how to use html, css, javascript, sql, python, php, bootstrap, java, xml and more.

w3schools free tutorials with examples of html, css, bootstrap, photoshop, c programming, c programs, c++, c++11, c#, c++ programs, java, java programs, java questions and answers, swift, android, javascript, jquery, r programming, php, php scripts, wordpress, restful web services, laravel, python, python programs, python data science, sql, mysql, mongodb, xml, json, data structures, operating system, dbms, software development life cycle (sdlc), cloud computing, software testing, git, ethical hacking, cyber security, technical writing,and entrepreneurship. learn at w3schools.