Stack Exchange

Sean Owen

United Kingdom

Primary author, Apache Mahout recommenders
Myrrix founder, an evolved Mahout-based recommender engine platform
Co-author, Mahout in Action
Primary author, ZXing / Barcode Scanner / Barcode Scanner+ for Android
Bitcoin: 1M7w2brTWAD6uSApodWWnA6QABVfXYigs3

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Top Questions

Is Android's CameraInfo.orientation correctly documented? Incorrectly implemented?

android camera orientation asked Jan 29 '12 at 18:09

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Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?

java floating-point jit sse vectorization asked May 28 '12 at 12:48

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Optimized implementations of java.util.Map and java.util.Set?

java performance collections map set asked May 14 '09 at 20:04

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Callers block until getFoo() has a value ready?

java synchronization multithreading properties block asked May 14 '10 at 19:47

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Top Answers

Is there a barcode recognition framework for iOS?

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Java: Thread.currentThread().sleep(x) vs. Thread.sleep(x)

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Embed Zxing library without using Barcode Scanner app

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why equals() method when we have == operator?

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Why can final object be modified?

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Google Protocol Buffers and HTTP

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Why is char[] preferred over String for passwords?

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QR codes image generator in java (open source but no GPL)

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Extract numbers from a string - Java

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Is it a bad idea if equals(null) throws NullPointerException instead?

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Android: How to check if the server is available?

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Which SHA-256 is correct? The Java SHA-256 digest or the Linux commandline tool

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Java connectivity with MySQL

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Using static variables in Android

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Android - Barcode Scanning, Options? Zxing?

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How to sort 100GB worth of strings

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Round a double to 3 significant figures

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Open Source collaborative filtering frameworks

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Compiler optimization: Java bytecode

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Is it more efficient to cast twice or create new instance

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Recommendation Engines for Java applications

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javadoc and overloaded methods

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How do I make HttpURLConnection use a proxy?

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How to read a file from a jar file?

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Set Date in a single line

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Java problem: Could not find main class HelloWorld

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Why am I getting a NullPointerException here?

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In Google Guava (Java), why are Iterables.getFirst() and getLast() are inconsistent?

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Porting java apps to Android platform

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java and threads: very strange behaviour

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