8.1.5 Manipulating 2d Arrays ((link)) 〈Limited ◆〉

You can use enhanced for-loops (for-each) to or modify objects within a 2D array, but be careful:

You finish one row before moving to the next. This is the standard approach in Java because 2D arrays are "arrays of arrays." 8.1.5 manipulating 2d arrays

In data analysis, you often need the sum of a specific row or column. Fix the row index r and loop through all c . You can use enhanced for-loops (for-each) to or

Example:

To change a value, you simply use the row and column indices on the left side of the assignment operator. 8.1.5 manipulating 2d arrays