December 2019
Intermediate to advanced
200 pages
5h 4m
English
Content preview from Real-World Software Development
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Chapter 2. The Bank Statements Analyzer
The Challenge
The FinTech industry is really hot right now. Mark Erbergzuck realizes that he spends a lot of money on different purchases and would benefit from automatically summarizing his expenses. He receives monthly statements from his bank, but he finds them a bit overwhelming. He has tasked you with developing a piece of software that will automate the processing of his bank statements so he can get better insights into his finances. Challenge accepted!
The Goal
In this chapter, you will learn the foundations about good software development before learning more advanced techniques in the next few chapters.
You will start off by implementing the problem statement in one single class. You will then explore why this approach poses several challenges in terms of coping for changing requirements and maintenance of the project.
But do not worry! You will learn software design principles and techniques to adopt to ensure that the code you write meets these criteria. You will first learn about the Single Responsibility Principle (SRP), which helps develop software that is more maintainable, easier to comprehend, and reduces the scope for introducing new bugs. Along the way, you will pick up new concepts such as cohesion and coupling, which are useful characteristics to guide you about the quality of the code and software that you develop.
Note
This chapter uses libraries and features from Java 8 and above, including the new date and time ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.