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Arrays of Wisdom of the Ancients
The Java Language and JDK Class Library have two distinct, yet connected, ways to group elements: arrays and Collections. There are pros and cons for using either one, so both are prevalent in real programs. To aid conversion between the two, there are standard methods to make a reference array appear as a Collection (e.g. Arrays.asList), and to copy from Collection to array (e.g. several Collection.toArray methods). In this post, we will try to answer a controversial question: which toArray conversion pattern is faster?
jvm  performance  Java 
3 days ago by lenciel
non/clouseau: Discover java object sizes through questionable sleuthing plus luck.
GitHub is where people build software. More than 28 million people use GitHub to discover, fork, and contribute to over 85 million projects.
6 days ago by skchrko
Apache Mahout
Apache Mahout(TM) is a distributed linear algebra framework and mathematically expressive Scala DSL designed to let mathematicians, statisticians, and data scientists quickly implement their own algorithms.
apache  mahout  linear  algebra  framework  math  scale  algorithm  programming  ml  machine-learning  jvm  dsl 
8 days ago by vicchow
JVM Internals
Explains internal architecture of Java Virtual Machine (JVM) in simple terms describing key components and how memory is updated during execution.
java  vm  architecture  jvm  internals  programming  reference 
8 days ago by e2b

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