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书籍《JAVA面向对象程序设计》书籍的课后源代码。相信对很多人都有帮助

This directory demonstrates that you can link
f77 programs into Java through C.  Here
Java calls the C function in myAverage.c which calls
the subroutine avef77() in ave.f

On HP-UX: 

(1) compile C file with:

cc -Ae +z -c -I/opt/java/include -I/opt/java/include/hp-ux myAverage.c

producing myAverage.o

(2) compile f77 file with:

f77 +z -c ave.f

producing ave.o

(3) Now build shared lib with

ld -b ave.o myAverage.o -o libave.sl

(4) javac Average.java

(5) java Average

You'll get the result

In C code
i is 11 and j is 20
Average is 15.500000