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How to study java.util?

chafule razgul
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Joined: Feb 09, 2002
Posts: 63
I have a basic understanding of the difference between Set/Collection/Map interfaces.. but try as i might i just cannot remember all the interface/classes in this package, much less the methods, method arguments, method throw lists associated with each of this...help!
[ February 25, 2002: Message edited by: chafule razgul ]
Matthew Phillips
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Joined: Mar 09, 2001
Posts: 2676
The big things to know are:
1. The difference between Collection and Collections (i.e. which is an interface and which is a class).
2. Know the appropriate uses for sets, lists, and maps.
3. Know the implementations of the above three.
That should get you through most of the java.util questions. Write lots of code, of course and you should do fine.


Matthew Phillips
mark stone
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Joined: Dec 18, 2001
Posts: 417
you don't need to memorize methods, instead remember the interface, its characteristics etc.
List, Set and Map interfaces.
and their inherited interfaces and classes (ones mentioned in RHE/Mughal) that implement these interfaces.
Originally posted by chafule razgul:
I have a basic understanding of the difference between Set/Collection/Map interfaces.. but try as i might i just cannot remember all the interface/classes in this package, much less the methods, method arguments, method throw lists associated with each of this...help!
[ February 25, 2002: Message edited by: chafule razgul ]
chafule razgul
Ranch Hand

Joined: Feb 09, 2002
Posts: 63
In the mock exams i've come across lots of questions asking what methods exist in Set/Map/SortedMap/TreeMap/Collection/Vector/etc..
so i'm a bit concerned as to what to really concentrate on.
I know the basic difference between set/list/map.. am i suppose to remember the hierarchy from collection down say 3 levels?
 
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