I want to know all the libraries & methods of java. Please, can any one help me?

Question

I want to get most important method for implementing all types array in java.

Answer 1

Thanks a lot @Farshaad

Answer 2

practice allot to get to know important methods and library's.....
all programmers don't memories all of them. .... just to know what could be done is enough to find the correct library and method from a resource