private void solveGraph(int x, int y , int num)
	{
			int idx,sqrX,sqrY;
		
			for(idx=0;idx<9;idx++)
			{
				(numGraph.get(idx)).matrix[x][y] = false;
			}
				
			for(idx=0;idx<9;idx++)
			{
				(numGraph.get(num)).matrix[x][idx] = false;				
				(numGraph.get(num)).matrix[idx][y] = false;
			}
			
			sqrX = x-(x%3);
			sqrY = y-(y%3);
			for(int i = sqrX;i <= (sqrX+2);i++)
			{
				for(int j = sqrY;j <= (sqrY+2);j++)
				{
					(numGraph.get(num)).matrix[i][j] = false;
				}
			}
				//numGraph.get(num).matrix[x][y]=true;
			return;
	}