Android Programming for Beginners - Second Edition

Repeating code with loops

Here, we will learn how to repeatedly execute portions of our code in a controlled and precise way by looking at several types of loops in Java. These include while loops, do while loops, and for loops. We will also learn about the most appropriate situations to use the different types of loops.

It would be completely reasonable to ask what loops have to do with programming, but they are exactly what the name implies. They are a way of repeating the same part of the code more than once, or looping over the same part of code, although potentially for a different outcome each time.

This can simply mean doing the same thing until the code being looped over (iterated) prompts the loop to end. It could be a predetermined number ...