Dynamic, 2D array

Programming Questions

pellens

in Programming Questions • 2 years ago

Hi guys,

i need to make a 2D array that will look like this:

array[0] = { 0, 1, 3 }
array[1] = { 2, 4 }
array[2] = {}
array[3] = { 5 }

This array needs to be made dynamical... I load data from a server, every array represents a building and his values represent user-id's (persons) that are present at that building. So I want to make it then when people are arriving or going away, I can change these values... So the questions are:

How can I add for example just 1 number to array[2]?
How can I delete for example the "3" from array[0]?

I'm in really short time to finish this (schoolproject), so any help would be cool!!

Thanks in advanced.

Pellens

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amnon.owed

Re: Dynamic, 2D array

2 years ago

A 2D array doesn't seem like the right tool for the job on this one. To add and remove people dynamically, I suggest using an arrayList (or an array of ArrayLists). You might even use a simple "Building" class and inside that class have the arrayList of the people id's. That way you could keep track of the different buildings easier.

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Dynamic, 2D array

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