Expanded Array Manipulation

Learn to manipulate arrays using an external library, an array of objects, and an array-based for loop.

The ArrayUtils.addAll() method

When returning the array values, we individually access each index, which is a tremendous internal utility that’s able to iterate over the whole array. This was one of the utilities from an internal library. Consider the possibility of external libraries that are imported on demand and constantly updating. Apache Commons is an external library that helps us manipulate an array and has extensive utility for programmers.

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