public class ExtendedTestProg {
public static void main (String [] args) {
ClassC c = new ClassC ();
c.printA ();
c.printB ();
c.printC ();
}
public static class ClassA {public void printA() {System.out.println ("A");}}
public static class ClassB extends ClassA {public void printB() {System.out.println ("B");}}
public static class ClassC extends ClassB {
public void printC() {
System.out.println ("C");
}
ClassC () {}
}
}