June 2018 Update

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Ingy döt Net 2018-06-22 20:57:24 +00:00
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{{language programming paradigm|reflective}}[[runs on vm::java virtual machine| ]]
The '''Java''' programming language, developed by [[Sun Microsystems]], is a language aimed at allowing "high-performance", virtual application development.
Java source files (.java files) are typically [[Compiler|compiled]] to an intermediate [[bytecode]] (all platform) executable (.class files) and executed by a [[Java Virtual Machine]]. Most modern JVMs further compile the bytecode into your processor's native machine code during execution. This native code translation is mostly done via a [[Just-In-Time|JIT]] compiler that is built in the JVM. Some Java compilers (such as [[GCJ]]) can compile Java code to native machine code ahead-of-time rather than just-in-time.
Java source files (.java files) are typically [[Compiler|compiled]] to an intermediate [[bytecode]] (all platform) executable (.class files) and executed by a [[Java Virtual Machine]].
Most modern JVMs further compile the bytecode into your processor's native machine code during execution.
This native code translation is mostly done via a [[Just-In-Time|JIT]] compiler that is built in the JVM. Some Java compilers (such as [[GCJ]]) can compile Java code to native machine code ahead-of-time rather than just-in-time.
The primary benefits of Java are:
* Cross-[[platform]] (Write Once, Run Anywhere (if all of the libraries are ported))
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Java is used in a variety of environments including desktop applications, embedded device (PDA and wireless phone) applications, server-side web page serving applications (as [[Java Server Pages|JSP]]), and applets embedded in web pages.
There are a variety of arguments regarding Java's performance compared to other popular languages like [[C++]]. Some come to the conclusion that the programmer's choices make a bigger difference on performance in each language. Most show that each language is better than the other at specific types of operations (e.g. Java for memory allocation, C++ for numerical operations). An extensive summary of comparisons between Java and C++ can be found [[wp:Comparison of Java and C++|on Wikipedia]].
There are a variety of arguments regarding Java's performance compared to other popular languages like [[C++]]. Some come to the conclusion that the programmer's choices make a bigger difference on performance in each language. Most show that each language is better than the other at specific types of operations (e.g. Java for memory allocation, C++ for numerical operations).
An extensive summary of comparisons between Java and C++ can be found [[wp:Comparison of Java and C++|on Wikipedia]].
According to some [http://www.tiobe.com/tpci.htm sources], Java is currently one of the most popular programming languages in the world.
Useful Java links:
* [http://www.java.com java.com]
* [http://www.java.net java.net]
* [http://openjdk.java.net OpenJDK]
* [http://openjdk.java.net OpenJDK]
* [https://hackr.io/tutorials/learn-java Hackr.io]
==Todo==
[[Reports:Tasks_not_implemented_in_Java]]

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../../Task/Arithmetic-geometric-mean-Calculate-Pi/Java

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../../Task/Averages-Mean-time-of-day/Java

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../../Task/Binary-strings/Java

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../../Task/Circles-of-given-radius-through-two-points/Java

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../../Task/Continued-fraction-Arithmetic-Construct-from-rational-number/Java

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../../Task/History-variables/Java

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../../Task/Interactive-programming/Java

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../../Task/List-comprehensions/Java

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../../Task/Multiplicative-order/Java

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../../Task/Polynomial-long-division/Java

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../../Task/Polynomial-regression/Java

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../../Task/Resistor-mesh/Java

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../../Task/Runtime-evaluation/Java

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../../Task/Safe-addition/Java

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../../Task/Special-variables/Java

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../../Task/Vigen-re-cipher-Cryptanalysis/Java

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../../Task/Zeckendorf-arithmetic/Java