February 2017
Beginner
1056 pages
28h 57m
English
Content preview from Java: An Introduction to Problem Solving and Programming, 8th EditionBecome 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,
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10.2 Text-File I/O
Proper words in proper places,
make the true definition of a style.
—JONATHAN SWIFT, Letter to a Young Clergyman (January 9,1720)
In this section, we give a description of the most common ways to perform text-file I/O in Java.
Creating a Text File
The class PrintWriter in the Java Class Library defines the methods that we will need to create and write to a text file. This class is the preferred one for writing to a text file. It is in the package java.io, so we will need to begin our program with an import statement. Actually, we will be using other classes as well, so we will import them also, as you will see soon.
Before we can write to a text file, we must connect it to an output stream. That is, we open the file. To do ...
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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.