関連ワード:  how to do 2d array in java    how to create 2d array in java    how to create 2d array in javascript    how to take 2d array in java    how to create 2d array in javascript dynamically    how to create multidimensional array in java    how to create multidimensional array in javascript    how to get 2d array length in java    how to take 2d array input in java    how to take 2d array input in java using scanner