関連ワード:  how to declare 2d array list in java    how to create 2d array list in java    how to initialize 2d array list in java    how to create 2d array using arraylist in java    how to define 2d arraylist in java    how to declare two dimensional arraylist in java    how to create 2 dimensional arraylist in java    how to create multidimensional arraylist in java    ways to declare array in java    how to declare 2d array in java