list, set or map ?

[Dipke]

Hello,

I have a collection of projects.
A project contains a projectname, customername, adress, contractnr, startdate, duration, ......
The intention is to show them into a calendarview.
There are about 50 projects a year.
The projects are serialized.

Do i have to put them into an arraylist, hashset or a map ?

Kind regards

[JosAH]

Hello,

I have a collection of projects.
A project contains a projectname, customername, adress, contractnr, startdate, duration, ......
The intention is to show them into a calendarview.
There are about 50 projects a year.
The projects are serialized.

Do i have to put them into an arraylist, hashset or a map ?

Kind regards

Do you have duplicate projects in your collection? If so use a List otherwise a Set is fine. If you want to associate the projects with something use a Map.

kind regards,

Jos

[m00nchile]

Exactly, look up the APIs for the List, Map and Set interfaces, get familiar with their their modus operandi, it should become pretty clear what interface to use in certain contexts.

[Dipke]

Hello,

Thanks for the answers,

Now i have an idea of what using.

Kind regards