Removing unchecked call warnings

Question

I have moved from 1.4.2 to 1.5.0 today, and now I'm trying to solve all the unchecked call warnings that I had in the code, but I have one that I don't know how to avoid it.
I need a matrix of nxn dimensions where every element is an Integer. I was creating this matrix in a recursive way, with a recursion deep of n. For example, if n=3, I had finally a Vector<Vector<Vector<Vector<Integer> > > >. As n is configurable by the user, I can't determine the data types that i must declare in the recursive calls that I use to manage the matrix.
There is a class to implement my "matrix" in a simplest way?
If not, there is a way to remove the warnings in the recursive calls?
If not, I suppose that I must keep the warnings...
Jorge

Answer 1

Well, my use of the matrix is not mathematical but to represent the "real world".
I'm working in the project previous to the University graduation, and I'm implementing a communication protocol among different computers.
Those computers are linked in n dimensions (I have let configurable the dimensions because I think that flexibility is important for things like this).
If n=1, the computers are linked like this:
A - B - C -D - E -F - G - H - J
If I have n = 2 the computers are linked like this:
A - B - C
| \ | / |
D - E - F
| / | \ |
G - H - J
(Well, in the post preview this last configuration looks very bad because some spaces are trim: The "E" computer is linked to all the rest of computers)
If I have n = 3 the computers are linked in a cube shape, if I have n = 4 in an hipercube, and so on.
That's why I need a multidimensional matrix to represent my network.
I have a class that encapsulates the access to all the linked neighbours of a computer, and internally it stores these neighbours as a Vector of Vector's. of Vector's...(n times)
For example, to create all the neighbour objects, I must write code like this:
private Vector neighbours; // I don't know what I must write inside <> next to Vector declaration
neighbours = new Vector(LINKS_IN_DIMENSION); // Again, the warning complains the lack of <>, but I don't know what goes inside
initializeDimensionVector(1, neighbours);
// In the method declaration, I need again the <> specification but is not possible
private void initializeDimensionVector(int dimension, Vector vecDimension)
     vecDimension.setSize(LINKS_IN_DIMENSION);
     if ( NET_DIMENSIONS == dimension )
          for ( int i = 0; i < LINKS_IN_DIMENSION; ++i )
          vecDimension.setElementAt(new NeighbourDirectlyConnected(), i);
          return;
     for ( int i = 0; i < LINKS_IN_DIMENSION; ++i )
          // And finally here, for the new recursive call, the unspecified Vector declaration appears again
          vecDimension.setElementAt(new Vector(LINKS_IN_DIMENSION), i);
          initializeDimensionVector(dimension + 1, (Vector)vecDimension.elementAt(i));
}The number of dimensions n is represented by NET_DIMENSIONS.
The other constant (LINKS_IN_DIMENSION) tells how many different indexes we have per dimension.
Hope this sample code explains a little bit what I'm trying to do.
I can close my eyes and forget the warnings, but I come from the C++ world and experience tells that warnings musn't be ignored.
Regards and thanks for your help.
Jorge.