2013-12-21, 03:11 PM
Depends what kind of web app you want to make. You can make a self-contained Java applet as a web app without having to muck around with HTML/CSS. I tend to dislike Java web apps though (mainly due to the somewhat obsolete reputation for being high risk to security).
HTML/CSS are simple enough that you can jump right into any reference and just start. W3C is a good starting place but they do have some errors and bad suggestions, so try not to rely on them too much.
PHP gives your web app server functionality. http://www.php.net already defines all the functions and usually has great examples for you to copy.
Javascript is also fairly simple compared to Java. I personally recommend using the jQuery library.
HTML/CSS are simple enough that you can jump right into any reference and just start. W3C is a good starting place but they do have some errors and bad suggestions, so try not to rely on them too much.
PHP gives your web app server functionality. http://www.php.net already defines all the functions and usually has great examples for you to copy.
Javascript is also fairly simple compared to Java. I personally recommend using the jQuery library.