Java compiler: Difference between revisions

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A Java compiler is a compiler for the programming language Java. The most common form of output from a Java compiler is Java class files containing platform-neutral Java bytecode, but there are also compilers that output optimized native machine code for a particular hardware/operating system combination.

Most Java-to-bytecode compilers, Jikes being a well known exception, do virtually no optimization, leaving this until run time to be done by the JRE.^{[citation needed]}

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.

A standard on how to interact with Java compilers programmatically was specified in JSR 199.

External links

Sun's OpenJDK javac page
JSR 199 Java Compiler API Java Specification Request for invoking the Java compiler from a Java program
Stephan Diehl, "A Formal Introduction to the Compilation of Java", Software - Practice and Experience, Vol. 28(3), pages 297-327, March 1998.

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 A '''Java compiler''' is a [[compiler]] for the programming language [[Java (programming language)|Java]].  The most common form of output from a Java compiler is [[Java class file]]s containing platform-neutral [[Java bytecode]], but there are also compilers that output optimized [[Machine code|native machine code]] for a particular hardware/[[operating system]] combination.