Two Dimensional (2D) Arrays
Get a brief introduction to 2D arrays in Java.
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Introduction
The concept of two-dimensional arrays is built on the arrays (one-dimensional array). Remember: when we talked about arrays in real life, we referred to them as lockers. Well, the same can be done for 2D-arrays. Look at the image below.
Picture a 2D array as the combination of both rows and columns of small lockers. A row has horizontal elements. A column has vertical elements. In the picture above, there are two rows and four columns of lockers. In this case, to locate a locker, you address it as a locker in 1st row, 2nd column. You have to provide both the row and column number.
2D arrays in Java
Java stores 2D arrays as arrays of arrays. Each element ...