October 2018
Beginner
766 pages
16h 25m
English
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Chapter 15. Arrays, ArrayList, Map and Random Numbers
In this chapter, we will learn about Java arrays that allow us to manipulate a potentially huge amount of data in an organized and efficient manner. We will also use a close Java relation to arrays, the ArrayList, and see the differences between them.
In addition, we will see how to handle data which can be logically linked to an identifier as part of a pair using a Map and we will also build some mini apps to practice these new concepts.
Furthermore we will see how to generate random numbers.
The topics we will cover in this chapter include the following:
- The Random class
- Handling data with arrays
- Arrays mini app
- Dynamic arrays, including mini app
- Multi-dimensional arrays, including mini app
- The
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.