Override methods from parent - Java Object Oriented Design

Java examples for Object Oriented Design:Method Override

Description

Override methods from parent

Demo Code

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.
 */

Result


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