Java examples for Object Oriented Design:Method Override
Override methods from parent
import java.util.*; class Cat extends Animal { public Cat() { super.setColor("white"); }//from w ww. ja va 2 s.c o m public static void hide() { System.out.format("The hide method in Cat.%n"); } public void override() { System.out.format("The override method in Cat.%n"); } // Returns a litter of cats public Collection<Cat> getLitter(int size) { ArrayList<Cat> litter = new ArrayList<Cat>(size); for (int i = 0; i < size; i++) litter.add(i, new Cat()); return litter; } public static void main(String[] args) { Cat myCat = new Cat(); Animal myAnimal = myCat; Animal.hide(); myAnimal.override(); } } public class Cats { public static void main(String[] args) { Cat myCat = new Cat(); Collection<Cat> litter = myCat.getLitter(3); for (Cat c : litter) System.out.format("%s%n", c.getColor()); } } class Animal { private String color; public void setColor(String color) { this.color = color; } public String getColor() { return this.color; } public static void hide() { System.out.format("The hide method in Animal.%n"); } public void override() { System.out.format("The override method in Animal.%n"); } } /* * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle or the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */