Binary file parser java

What generates your. Jesper's Blog - Pluralsight Author Page. Forum: Java in General. Binary File Parsing. James Basller. Optional 'thank-you' note:. Hi All, I have one binary file. I highlighted the top three methods in green, the average performing methods in yellow and the worst performing methods in red:. I removed java. The other excellent performer was java.

The absolute fastest file reader across all data tests was java. It was consistently the fastest and even reading a 1GB file only took about 1 second.

You can see that the lowest times were for Files. The following chart compares performance for reading a 10MB file. As expected, the absolute worst performer was java. I tried to present a comprehensive set of methods for reading files in Java, both text and binary.

We looked at 15 different ways of reading files in Java and we ran performance tests to see which methods are the fastest. The new Java IO library java.

Home Contact. Funnel Garden. Ultimate Guide for Reading Files in Java. Table of Contents. FileReader ; import java. FileInputStream ; import java. IOException ; import java. BufferedReader ; import java. File ; import java. FileNotFoundException ; import java. BufferedInputStream ; import java. From what I've seen, it's by far the most popular Java bytecode library, and yes, it is still maintained. At time of writing, it looks like the most recent change was 41 days ago. So it's not constantly churning but it's not like it's abandoned either.

And with such a commonly used library, support should be easy to find. How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Java binary. Ask Question. Asked 6 years, 10 months ago. Active 6 years, 5 months ago. Google's Protocol Buffers. Parser combinator library is an option. JParsec works fine, however it could be slow. You can parse binary files with parsers like JavaCC.

Here you can find a simple example. Probably it's a bit more difficult than parsing text files.