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// reusing/FinalOverrideEx.java

// TIJ4 Chapter Reusing, Exercise 21, page 269

/* Create a class with a final method. Inherit from that class and attempt to

* override that method.

*/

import static net.mindview.util.Print.*;

class WithFinal {

final void f() { print("WithFinal.f()"); }

void g() { print("WithFinal.g()"); }

final void h() { print("WitFinal.h()"); }

}

class OverrideFinal extends WithFinal {

// attempt to override:

// public final void f() { print("OverrideFinal.f()"); } // no can do

@Override public void g() { print("OverrideFinal.g()"); } // OK, not final

// final void h(); { print("OVerrideFinal.h()"); } // cannot override final

}

public class FinalOverrideEx {

public static void main(String[] args) {

OverrideFinal of = new OverrideFinal();

of.f();

of.g();

of.h();

// Upcast:

WithFinal wf = of;

wf.f();

wf.g();

wf.h();

}

}