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If you don't want a 2 dimensional array or an arraylist, I have no idea what will solve your problem.

For an ArrayList read the API doc: Java Platform SE 7
An ArrayList can contain a list of any type of object.

Also see the tutorial: ...

Are you asking how to define a two dimensional array?

int[][] twoD = new int[2][];
twoD[0] = new int[6]; // 6 elements for first one
twoD[1] = new int[123]; // 123 elements for...