生成Java头文件时出错

Question

I am trying to create a java header file. I compiled the project in netbeans then in command line i type the following:

javah -classpath C:\Users\User\Documents\NetBeansProjects\JNITest\build\classes.jnitest HelloWorld

I also tried:

javah -classpath C:\Users\User\Documents\NetBeansProjects\JNITest\build\classes\jnitest HelloWorld

But I am getting an error: Could not find clas file for HelloWorld .

The class is clearly there located in:

C:\Users\User\Documents\NetBeansProjects\JNITest\build\classes\jnitest\HelloWorld.class

How should I correctly specify the path?

Answer 1

Try this:

javah -classpath C:\Users\User\Documents\NetBeansProjects\JNITest\build\classes jnitest.HelloWorld
                 ^---------------- class folder ------------------------------^ ^--- classname --^

Answer 2

Hoi,

Oracle has a good tutorial about this: Javah - Tutorial

The catch is to specify the full qualified class name correctly. I guess you have set a package for your HelloWorld class, so that package must be within the path too.