June 2018 Update
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{{language programming paradigm|reflective}}[[runs on vm::java virtual machine| ]]
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The '''Java''' programming language, developed by [[Sun Microsystems]], is a language aimed at allowing "high-performance", virtual application development.
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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.
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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]].
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Most modern JVMs further compile the bytecode into your processor's native machine code during execution.
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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.
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The primary benefits of Java are:
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* 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.
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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]].
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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).
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An extensive summary of comparisons between Java and C++ can be found [[wp:Comparison of Java and C++|on Wikipedia]].
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According to some [http://www.tiobe.com/tpci.htm sources], Java is currently one of the most popular programming languages in the world.
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Useful Java links:
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* [http://www.java.com java.com]
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* [http://www.java.net java.net]
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* [http://openjdk.java.net OpenJDK]
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* [http://openjdk.java.net OpenJDK]
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* [https://hackr.io/tutorials/learn-java Hackr.io]
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==Todo==
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[[Reports:Tasks_not_implemented_in_Java]]
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1
Lang/Java/Arithmetic-geometric-mean-Calculate-Pi
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Lang/Java/Arithmetic-geometric-mean-Calculate-Pi
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../../Task/Arithmetic-geometric-mean-Calculate-Pi/Java
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1
Lang/Java/Averages-Mean-time-of-day
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Lang/Java/Averages-Mean-time-of-day
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../../Task/Averages-Mean-time-of-day/Java
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Lang/Java/Binary-strings
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Lang/Java/Binary-strings
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../../Task/Binary-strings/Java
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Lang/Java/Circles-of-given-radius-through-two-points
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Lang/Java/Circles-of-given-radius-through-two-points
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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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Lang/Java/History-variables
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Lang/Java/History-variables
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../../Task/History-variables/Java
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Lang/Java/Interactive-programming
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Lang/Java/Interactive-programming
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../../Task/Interactive-programming/Java
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Lang/Java/List-comprehensions
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Lang/Java/List-comprehensions
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../../Task/List-comprehensions/Java
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Lang/Java/Multiplicative-order
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Lang/Java/Multiplicative-order
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../../Task/Multiplicative-order/Java
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Lang/Java/Permutation-test
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Lang/Java/Permutation-test
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../../Task/Permutation-test/Java
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Lang/Java/Polynomial-long-division
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Lang/Java/Polynomial-long-division
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../../Task/Polynomial-long-division/Java
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Lang/Java/Polynomial-regression
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Lang/Java/Polynomial-regression
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../../Task/Polynomial-regression/Java
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Lang/Java/RSA-code
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Lang/Java/RSA-code
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../../Task/RSA-code/Java
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Lang/Java/Resistor-mesh
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Lang/Java/Resistor-mesh
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../../Task/Resistor-mesh/Java
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Lang/Java/Runtime-evaluation
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Lang/Java/Runtime-evaluation
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../../Task/Runtime-evaluation/Java
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Lang/Java/Safe-addition
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Lang/Java/Safe-addition
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../../Task/Safe-addition/Java
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Lang/Java/Special-variables
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Lang/Java/Special-variables
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../../Task/Special-variables/Java
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Lang/Java/Vigen-re-cipher-Cryptanalysis
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Lang/Java/Vigen-re-cipher-Cryptanalysis
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../../Task/Vigen-re-cipher-Cryptanalysis/Java
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Lang/Java/Zeckendorf-arithmetic
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Lang/Java/Zeckendorf-arithmetic
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../../Task/Zeckendorf-arithmetic/Java
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