Difference b/w collections!

Would any one tell me difference b/w

HashMap

and

AbstractMap

and

Hashtable

List

and

LinkedList

we usually use them but not exactly know the theoritical difference, also plz tell me what collection is sorted is there any ?

Thanks

Faisal khan

[313 byte] By [faisalloea] at [2007-11-26 17:49:39]