Learnig Java

I m doing my b.tech(2nd Year) from Galgotias college . I started learning java from a book by e balagurusamy Programming with Java. But im facing some prblms understanding the concept of class, method and object . Please tell me only basic information about these topics, i don’t have any problem in programming but with meanings and concept of these new things. I know C language only.

go here… tutorials point