Java compiler

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,[1] but there are also compilers that output optimized native machine code for a particular hardware/operating system combination, most notably the now discontinued GNU Compiler for Java.[2]

Most Java-to-bytecode compilers do virtually no optimization, leaving this until run time to be done by the Java virtual machine (JVM).

The 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.[3]

See also

List of Java Compilers
javac, the standard Java compiler in Oracle's JDK

References

"The Java Virtual Machine Specification, Java SE 8 Edition, Section 1.2". Retrieved 2021-09-24.
"GCJ - past, present, and future". Retrieved 2021-09-24.
"JSR 199: JavaTM Compiler API". Retrieved 2021-09-24.

External links

Sun's OpenJDK javac page
Stephan Diehl, "A Formal Introduction to the Compilation of Java", Software - Practice and Experience, Vol. 28(3), pages 297-327, March 1998.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.