June 2018
Beginner
722 pages
18h 47m
English
Content preview from Introduction to Programming
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Managing strings
The class String is used a lot. So, you have to have a good handle on its functionality. We talked already talked about String value immutability in Chapter 5, Java Language Elements and Types. We have shown that every time a String value is "modified", a new copy of the value is created, which means that in the case of multiple "modifications", many String objects are created, consuming memory and putting a burden on the JVM.
In such cases, it is advisable to use the class java.lang.StringBuilder or java.lang.StringBuffer because they are modifiable objects and do not have an overhead of creating String value copies. We will show how to use them and explain the difference between these two classes in the first part of this ...
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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.
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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.