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  2. Comparison of online source code playgrounds - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_online...

    Playground Access C C++ Objective-C Java Other code [a]: Free Yes Yes Yes Yes Bash, C, CoffeeScript, C++, Crystal, C#, D, Dart, Elixir, Erlang, F#, Go, Hack, Haskell ...

  3. OJ (programming tool) - Wikipedia

    en.wikipedia.org/wiki/OJ_(programming_tool)

    Michiaki Tatsubori was the lead developer of OpenJava. Its first release was back to 1997, and won the Student Encouragement Prize at the Java Conference Grandprix '97 held in Japan. [1] This isn't to be confused with OpenJDK, which is the open source release of the Java compiler runtime and tools.

  4. IcedTea - Wikipedia

    en.wikipedia.org/wiki/IcedTea

    Hence, developers needed an already-working Java compiler and runtime in order to build OpenJDK. Originally, only the existing proprietary Sun JDK met that requirement. Free distributions like Fedora can't depend on proprietary tools in order to build packages, so the IcedTea project had to make it possible to compile the code using free software.

  5. JavaCC - Wikipedia

    en.wikipedia.org/wiki/JavaCC

    JavaCC (Java Compiler Compiler) is an open-source parser generator and lexical analyzer generator written in the Java programming language. [2] JavaCC is similar to yacc in that it generates a parser from a formal grammar written in EBNF notation. Unlike yacc, however, JavaCC generates top-down parsers.

  6. Java bytecode - Wikipedia

    en.wikipedia.org/wiki/Java_bytecode

    In general, a Java programmer does not need to understand Java bytecode or even be aware of it. However, as suggested in the IBM developerWorks journal, "Understanding bytecode and what bytecode is likely to be generated by a Java compiler helps the Java programmer in the same way that knowledge of assembly helps the C or C++ programmer."

  7. Java compiler - Wikipedia

    en.wikipedia.org/wiki/Java_compiler

    The most common form of output from a Java compiler is Java class files containing cross-platform intermediate representation (IR), called Java bytecode. [2] The Java virtual machine (JVM) loads the class files and either interprets the bytecode or just-in-time compiles it to machine code and then possibly optimizes it using dynamic compilation.

  8. javac - Wikipedia

    en.wikipedia.org/wiki/Javac

    On 13 November 2006, Sun's HotSpot Java virtual machine (JVM) and Java Development Kit (JDK) were made available [4] under the GPL license. [5]Since version 0.95, GNU Classpath, a free implementation of the Java Class Library, supports compiling and running javac using the Classpath runtime — GNU Interpreter for Java (GIJ) — and compiler — GNU Compiler for Java (GCJ) — and also allows ...

  9. Free Java implementations - Wikipedia

    en.wikipedia.org/wiki/Free_Java_implementations

    Since the GNU Compiler Collection's 4.3 release, GCJ (its Java compiler) is using the ECJ parser front-end for parsing Java. [4] Examples of free runtime environments include Kaffe, SableVM and gcj. GNU Classpath is the main free software class library for Java. Most free runtimes use GNU Classpath as their class library.