Figure 2 reveals that Java represents a two-dimensional array as a one-dimensional row array whose elements reference one-dimensional column arrays. The row index identifies the column array; the ...

Difference between a column and row The key difference between columns and rows is that a column arranges data vertically from top to bottom, while a row arranges data horizontally from left to right.

This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.