Which field should I choose in computers to pursue a Diploma among HTML, Java and programming?

Web Designing and Development.It covers HTML,DHTML,XML,DREAM WEAVER,PHOTOSHOP,ACTION SCRIPT, FLASH, CSS, PHP,JAVA programming etc.

Veenu, go for a diploma in CSE. These all are part of it. After a diploma from a good institute you can go for B.Tech lateral entry or you can join Dual diploma-degree saving an year as well as tension of search a new college or admission. Many good institutes offer these type of courses. Some even