SE450: Inner Class: Extending classes [8/16] Previous pageContentsNext page

An anonymous inner class may extend a class, rather than implement an interface.

file:Main.java [source] [doc-public] [doc-private]
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package basics.inner.four;
public class Main {
  private Main() {}
  static public void main (final String[] args) {
    //stdlib.Trace.graphvizShowSteps (true); stdlib.Trace.run ();
    C mc1 = new C(42);
    C mc2 = new C(36);
    mc1.f();
    mc2.f();
  }
}

abstract class Print {
  int py;
  Print(int y) { py = y; }
  abstract void print();
}

class C {
  int cx;
  C(int x) { cx = x; }
  void f() {
    Print p = new Print(27) {
      public void print() {
        System.out.println(" cx=" + cx + " py=" + py);
      }
    };
    p.print();
  }
}

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