I wanna learn asp.net , web develepor,web designing, .net,java or java script. so please help me what i do?I already knw c,c++ and oop.need ur help...

you need know the different between Markup Language(web designing) and programming Language(web developer ).

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then learn the easier languages as HTML(web designing) and PHP(web developer) 

you want to learn web development is a great choice you can start with c# basics  it is a child of c but with interface design easy access libraries

so in the .net career path  i recommend you go through codeproject.com website and start reading the projects ideas and start collectiong you needed information asp.net c#

for the java  jsb it is a great technology also despite java is c# sister as i imagine 

for me i learned the java then the c# and it was a quite easy and you can see that java is very similar to c++ for java i recommend you 

Introduction to Java Programming, Comprehensive Version,10E this book is great rich with examples 

and about designing and web development i think you should start with html basics and css and java script from w3school   after you finish it start with html5 and bootstrap ,and learn photoshop 

you can through these tools and technologies gain the basic needed information and good luck 

When you are starting to learn web development from scratch you will need to start with understanding the basic need and architecture of web development. Then you can start picking language of your choice from implementation. Initially you will need to start learning basic things like HTML, CSS, JavaScript and needful IDEs i.e netbeans, dreamweaver

Then you should learn some basic concepts of database and OOP concepts. Then and only then you will be able to learn the rest things in any language.

Start with Hello World

learn :

1-asp.net with c#

2-javascript ,html,css

3-python

choose one of them

in java you can not develop or design web

In any programming...whatever it is, always starts with "Hello World". Rest is history... c",)

Start studing C#, when you know already C and C++ this language you learn fest. But for web develop you more need PHP and JavaSript whit HTML5 and CSS make pregorative what important and easy, you can study all in one time this is not matryx this is realyty.

you just need to follow a tutorial, basics are all same, just a syntax is different and you will be all good to go. Or Hire some professional to teach you basics of any you prefer first.

Asp.net,PHP,HTML,CSS,JQUERY,AJAX are used for web development and ,objective c,C,C++,java,C#,vb are used for application development like desktop apps,windows store app or mac os x apps,if you have interested in  Web development than first start with HTML>CSS>JQUERY/Javascript>Asp.net/PHP Html is is used for body structure of website and css is used for properties /layout of web like margin,border,header color,background effect etc where as for the behaviour of website you have to use javascript and Ajax,these languages will give you80% complete website for basic purpose and for complex website like online store etc you also require web programming language i.e Asp.net,Jsp,PHP,You have found many tutorial on youtube about any computer language but for basics you have to start with w3schools.com. for web development

Best-Of-Luck.......

Easily you can learn by you tube video. you are telling already you know the oops concept. so simple

The most important thing for websites in these days is to be responsive, so the user can view it in all devices: desktop, taplets and mobile devices, so I think you should start with (responsive web design and development).

For web design and web development try codecademy.com or codeschool.com. They have really good courses. The first website is free and the second is a monthly subscription website, yet they have a few free courses to try out. Personally, I prefer the second one and I think It's worth the money.