javah.exe : Java Glossary

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©1996-2017 Roedy Green of Canadian Mind Products

javah.exe

A tool used by JNI (Java Native Interface) programmers. It takes a class file that declares some abstract native methods and creates a C, yes C, header file containing source code for C-style method signatures for the native methods you have yet to write in C, C++ or assembler.

It works much like java.exe except instead of running the program it examines the class files and disassembles them:

javah.exe -jni -o PCClock.h com.mindprod.Clock.PCClock
You must specify the fully qualified class name, without the *.class extension. The -o option lets you specify the name of the generated output C source code header file.

Learning More

Oracle’s Java 1.8 documentation on : javah.exe

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