Compiling Problem Java Project Exception

Question

It's my java code that include nativfe methot.I compile it javac Bessel.java
And I wanted to jni.h file javah -jni Bessel but I had an exception
C:\Documents and Settings\TTG\Desktop>javac Bessel.java
C:\Documents and Settings\TTG\Desktop>javah -jni Bessel
error: cannot access Bessel
class file for Bessel not found
javadoc: error - Class Bessel not found.
Error: No classes were specified on the command line. Try -help.
***** What must I do *******
public class Bessel
// Declaration of the Native (C) function
private native double s17acc(double x);
static
// The runtime system executes a class's static
// initializer when it loads the class.
System.loadLibrary("nagCJavaInterface");
// The main program
public static void main(String[] args)
double x, y;
int i;
/* Check that we've been given an argument */
if (args.length != 1)
System.out.println("Usage: java Bessel x");
System.out.println(" Computes Y0 Bessel function of argument x");
System.exit(1);
// Create an object of class Bessel
Bessel bess = new Bessel();
/* Convert the command line argument to a double */
x = new Double(args[0]).doubleValue();
System.out.println();
System.out.println("Calls of NAG Y0 Bessel function routine s17acc");
for (i = 0; i < 10; i++)
/* Call method s17acc of object bess */
y = bess.s17acc(x);
System.out.println("Y0(" + x + ") is " + y);
/* Increase x and repeat */
x = x + 0.25;
}

Answer 1

C:\Documents and Settings\TTG\Desktop>javac Bessel.java
C:\Documents and Settings\TTG\Desktop>javah -jni Bessel
error: cannot access BesselMy guess would be that you set the env var CLASSPATH and that you did it wrong.