Array List Question....

[kev3kev3]

I would like to know if it is possible to remove an element from an array list by stating a variable of the object I'm trying to remove.

So I have the following remove method, where person is an object that includes a first name and last name, etc. Group is the Array List that I have.

public void remove (Person a)
{
group.remove (a);
}

So is there anyway of using the remove method to state a surname for example and remove the element. This is instead of group.remove (0) and just stating the element in the Array List.

I hope this makes some kind of sense.

Help is massively appreciated...

Thanks

[KevinWorkman]

So, let me see if I understand: you have a List of Persons, and a Person can contain a name? And you want to be able to remove the Person with a specific name from the List?

Sounds like a job for a Map.

Or you could iterate over the List until you find a Person with that name and then remove it.

[kev3kev3]

OK, one other thing. If I wanted add a Person to the list and wanted them to be added alphabetically by surname, then by first name for instance. What would be the best way to store the Person objects?

[jlczuk]

This sounds like a job for SortedMap. Whenever you are doing anything with collections, you should checkout the Collections API to learn what goodies it has to offer. I'm hoping you don't need a link to the Oracle site to get to the doc.