Hi, I find lot of methods in the collections, Date which I am finding it difficult remember the signatures and return type of the methods . I went through some of the mock exams I didn't find much questions on this package.Kindly let me know if I have to remember each and every method in the java.util.package. Please advice me if I have to know all methods in th java.util package for the certfication exam. Regards Ananth
Hiya, I think it is very important to remember the interfaces, abstract classes and concrete classes of the Collection utilities. You should also know which type of collection you will require depending on whether you need to store data uniquely, duplicated-doesn't-matter etc... Therefore, you need to understand about Lists, Sets, Maps, SortedSets, SortedMaps. Their abstract classes (AbstractMap, AbstractSet etc....) and some concrete implementations (LinkedList, ArrayList, TreeMap, TreeSet....etc...) Most of this classes share the same method names (add, remove, etc..) Take a look at the Java Tutorial online at this URL:- http://java.sun.com/docs/books/tutorial/collections/intro/index.html David
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Open Group Certified Distinguished IT Architect. Open Group Certified Master IT Architect. Sun Certified Architect (SCEA).
Hi David, Thank you very much for the suggestions you have given to me. The classes and methods you have mentioned as you told are easy to remember. I am referring to Java 2 Complete reference by Schidt. There I found 16th chapter(java.util) which contains various Date classes and their formats. I have seen the Tutorial you have mentioned. Again thank you very much. Ananth