Create Classes In Different Packages With Error-free Importing

Question

Hello,
I'd like to create a class which inherits from another class from some other package. So I use "import" keyword to involve the class to build my new class on. However, I hope my new class can be in its own package which is different with one the base class is in. To make it clear, please see the example below:
There are two folders, with name c08 and c09 respectively, in C:\Java which I created for this case. I set the environment variable as C:\Java. There is no problem. Then I saved file "Inter.java" in C:\Java\c08. It's source code is as below:
package c08;
public interface Inter {
     void play ();
     void action ();
And another "Test.java" is saved in C:\Java\c09. Source code as below:
package c09;
import c08.*;
public class Test {
protected class PC implements Inter {
          public void play () {
               System.out.println("Play()");
          public void action () {
               System.out.println("Action()");
It was successfully compiled for "Inter.java". But when comes to "Test.java", it failed with error message of something like "Cannot find the interface Inter". I tried some other ways and I didn't get any results.
I hope to create a class using classes from some other packages while keeping the new one in a different package. How can this be done? (I am currently doing this in J2SE 1.4.01 under Windows XP Home Edition)
Thank you!
Best Regards
Felix

Answer 1

I copied and pasted your code as well as made c08 and c09 directories. I had no errors compiling. I am using NT, but it appears that your problem is Classpath related. You can try to CD to the C:\Java directory and compile using "javac c09\Test.java" That's the command I used.