Compiling withing a package

Question

Hello !
For the following I have defined a package pack1 folder/directory.
The problem is that the Super class gets compiled but not the sub classes. All the files are located within the package pack1. Why do I get this problem ?
God bless you for your help.
package pack1 ;
public class Protection {
int n = 1 ;
private int nPri = 2 ;
protected int nPro = 3 ;
public int nPub = 4 ;
public Protection() {
System.out.println("Base Constructor ");
System.out.println("Private n :" + nPri);
System.out.println("Protected n :" + nPro);
System.out.println("Public n :" + nPub);
package pack1 ;
class Derived extends Protection {
Derived() {
System.out.println("Derived Constructor");
System.out.println("n = " + n);
// class only
// System.out.println("Private n = " + nPri);
System.out.println("Protected n = " + nPro);
System.out.println("Public n = " + nPub);

Answer 1

You will get better answers if you post the error messages and the command you entered.
So, let's say you have Windows and c:\myjava\pack1\Protection.class. To compile Derived, you must have c:\myjava in your Classpath. For example, javac -classpath c:\myjava  Derived.javawith Derived.java in your current directory.
http://java.sun.com/docs/books/tutorial/java/interpack/packages.html