W3 Schools contains ample of information and examples of various programming languages and the most important thing is it is free of cost you can access the website get all information you can use the examples provided and you can try learning the same on your desktop or laptop. W3 Schools contains different topics like Java, JavaScript, VBScript, VB, XML, BootStrapper, .Net, HTML etc - all programming, scripting languages information are available from this website.
The best thing is it start from scratch like for e.g. in java programming what you need to install, from where you will find the same, how to install and then how to create your first sample program as well as it also give you chance to try the program on their editor to work with the same. My personal experience remain really awesome with this website as I have learn many languages going through this website and then trying to create the one which help me out in various way as in form of examples, resources, tutorial. Moreover, it also contains quiz once you complete the lessons you can go for quiz which will give you result from which you will come to know at what point you reach after studying various tutorials available.
I can see the website as much useful because it is really good for any type of programmer like beginners, expert, professional who can go through the pond of knowledge and get information out of it. Always Thumbs Up for this website and will also recommend other to use the same. W3Schools keep up the good work.