A demonstration of abstract. : Abstract Class « Class Definition « Java Tutorial

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Java Tutorial » Class Definition » Abstract Class

5. 28. 2. A demonstration of abstract.


abstract class A {

  abstract void callme();



  void callmetoo() {

    System.out.println("This is a concrete method.");

  }

}



class B extends A {

  void callme() {

    System.out.println("B's implementation of callme.");

  }

}



class AbstractDemo {

  public static void main(String args[]) {

    B b = new B();



    b.callme();

    b.callmetoo();

  }

}

5. 28. Abstract Class
	5. 28. 1.	Abstract Classes
	5. 28. 2.	A demonstration of abstract.
	5. 28. 3.	Using abstract methods and classes.

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