Java Programming: Lesson 15 - 1D Arrays and the For Each Loop

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The previous video (https://youtu.be/CjtuxODXkhw) explains the continue and break keywords, two very special keywords in Java. This video goes over a data structure called an array, which holds multiple elements of the same data type. Note the default values, how to iterate through an array, and how to operate a for-each loop.

An array is a collection of elements. It has a constant size; the number of elements cannot be changed after the object is created. But you can change the elements occupying particular index positions, which are defaulted to 0, 0.0, "", and false for ints, doubles, Strings, and booleans, respectively.

We can iterate through loops using any of our arrays. We can use a while loop, a for loop, or a for-each loop which is discussed in this videos. For-each loops, also called enhanced for loops, are the easiest way to parse each element in an array or each character in a String

0:05 NEW: Intro to Arrays
8:38 NEW: Iterating through Arrays with a Loop
10:01 NEW: Immediate Array Creation
12:48 NEW: For-Each Loops
17:08 Example with For-Each Loops

Python doesn't have an array that works exactly like Java's. For Python's for loop, which looks a whole lot like Java's for-each loop, check out this equivalent video: https://youtu.be/54THLpliSAE

For Python's list, which is kinda sorta like Java's array (but not exactly), check out this link: https://youtu.be/6eQGPPFDflk

Ready for the next lesson, on characters? Try this video: https://youtu.be/1yKs8cAzqzU (lesson 16)

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