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fastutil-core

fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and priority queues with a small memory footprint and fast access and insertion; provides also big (64-bit) arrays, sets and lists, sorting algorithms, and fast, practical I/O classes for binary and text files. This module contains data structures based on integers, longs, doubles, and objects.
http://fastutil.di.unimi.it/
Apache License, Version 2.0
Sebastiano Vigna
binary integers specific data footprint contains type insertion practical longs priority sorting sets doubles algorithms objects lists collections classes files module text with extends provides providing access fastutil framework memory structures maps java queues fast also small this arrays based
Files download
File Operation
fastutil-core-8.5.4.jar download
fastutil-core-8.5.4.pom download
fastutil-core-8.5.4-sources.jar download
Apache Maven 
<dependency>
  <groupId>it.unimi.dsi</groupId>
  <artifactId>fastutil-core</artifactId>
  <version>8.5.4</version>
</dependency>
Gradle Groovy 
implementation 'it.unimi.dsi:fastutil-core:8.5.4'
Gradle Kotlin 
implementation("it.unimi.dsi:fastutil-core:8.5.4")
Scala SBT 
libraryDependencies += "it.unimi.dsi" % "fastutil-core" % "8.5.4"
Groovy Grape 
@Grapes(
  @Grab(group='it.unimi.dsi', module='fastutil-core', version='8.5.4')
)
Apache Ivy 
<dependency org="it.unimi.dsi" name="fastutil-core" rev="8.5.4" />
Leiningen 
[it.unimi.dsi/fastutil-core "8.5.4"]
Apache Buildr 
'it.unimi.dsi:fastutil-core:jar:8.5.4'
Dependencies

test

|-- junit:junit:4.12