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collection practical examples


I see java collection is kind of heart of java projects i am working with. I would like to learn java collection practical complex examples to understand them clearly.

 Any links resources ideas highly appreciated. Thanks in advance
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Ken ButtersCommented:
Javadocs are the best source of information for information on how to use any java class.  Everything you really need to know to use them is included.

It will list constructors.
The java docs will list all members of the class (if there are any).
It will list any methods of the class.
It will list and describe what any method has as a return value.

Here is the java docs for collections.

Taking the time to learn how to read and use Java docs is well worth it.

This is a tutorial from Oracle on Java Collections, with code examples.
Ken ButtersCommented:
That being said... I just went back and looked through open questions that I have participated in... and I see that I personallhy have participated in no less than 10 question posted by you that are still currently open and not awarded any points.

Can I ask why?   If you think the questions are not answered properly then you can ask for clarification of the questions...

If they are answered to your satisfaction, it would be greatly appreciated if you would close them according to the post that accurately answered you questions.
Second that.
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