関連ワード:  find 2d array length in java    how to find 2d matrix length in java    how to find 2d array size in java    get 2d array size java    how to find 2d array column length in java    how to get two dimensional array length in java    how to get two dimensional array length in javascript    how to get multidimensional array length in java    how to find row length in 2d array in java