hi,

in my program i have a class cell which holds data in an array. I have another class which is an array of agents. They have an ID (1, 2, 3...).  I want the agents to access the index of the cell array equal to their id.

should the following code work?...it doesn't appear to.

Cell:
float [] array = new float [variable];

the cells form a grid, which is an array of cells.
So to access the element = to agent id of the cell at agent position:
agent calls: grid[cellX][cellY].array[id-1]

hope that is clear - happy to expalin further if required.
thanks for any help.

ehm... the agent has a property called id, and needs to find the appropriate value IN the cell class at index equal to the Agents object id?

that's array[id] alright.

But I'm really unsure on what this cell business is. If you want all values returned from the arrays in all cells at the agent's id index, you'd just loop through the whole array of cells? "grid" is a two-dimensional array of Cell objects, right?

So you haven't got a class that contains an array of Agents, but an array that contains Agent objects?  This is why posting some code would have clarified your description...  So presumably this code is being called from within the agent class:

grid[cellX][cellY].array[id-1]

If your agent IDs start at 1, as per your description, the id-1 looks like the right index.  I guess the next question is whether 'grid[cellX][cellY]' returns an instance of a Cell object.  I.e. is every index of the 2D array populated with an instance of a Cell?  And is the array within each Cell declared and populated with a number of elements equal to the number of agents?