public PrimaryApproach()
	{
		numGraph = new ArrayList<PositionGraph>();
		boxProbability = new Probability [9][9];
		
		for(int j=0;j<9;j++)
		{
			for(int k=0;k<9;k++)
			{
				boxProbability[j][k]=new Probability ();
			}
		}
		
		for(int i=0; i < 9; i++){
			  PositionGraph temp = new PositionGraph();
			  numGraph.add(temp);
		}
			  
	}