55 lines
1.1 KiB
Java
55 lines
1.1 KiB
Java
// polymorphism/Sandwich.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// Order of constructor calls
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// {java polymorphism.Sandwich}
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package polymorphism;
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class Meal {
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Meal() { System.out.println("Meal()"); }
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}
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class Bread {
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Bread() { System.out.println("Bread()"); }
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}
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class Cheese {
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Cheese() { System.out.println("Cheese()"); }
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}
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class Lettuce {
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Lettuce() { System.out.println("Lettuce()"); }
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}
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class Lunch extends Meal {
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Lunch() { System.out.println("Lunch()"); }
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}
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class PortableLunch extends Lunch {
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PortableLunch() {
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System.out.println("PortableLunch()");
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}
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}
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public class Sandwich extends PortableLunch {
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private Bread b = new Bread();
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private Cheese c = new Cheese();
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private Lettuce l = new Lettuce();
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public Sandwich() {
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System.out.println("Sandwich()");
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}
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public static void main(String[] args) {
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new Sandwich();
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}
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}
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/* Output:
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Meal()
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Lunch()
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PortableLunch()
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Bread()
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Cheese()
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Lettuce()
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Sandwich()
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*/
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