initial checkin

Author: angiejones

chapter10/Animal.java

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+package chapter10;
+
+public class Animal {
+
+    public void makeSound(){
+        System.out.println("unknown animal sound");
+    }
+}

chapter10/Cat.java

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+package chapter10;
+
+public class Cat extends Animal {
+
+    @Override
+    public void makeSound(){
+        System.out.println("meow");
+    }
+
+    public void scratch(){
+        System.out.println("I am a cat. I scratch things.");
+    }
+
+}

chapter10/Dog.java

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+package chapter10;
+
+public class Dog extends Animal {
+
+    @Override
+    public void makeSound(){
+        System.out.println("woof");
+    }
+
+    public void fetch(){
+        System.out.println("fetch is fun!");
+    }
+}

chapter10/Zoo.java

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+package chapter10;
+
+public class Zoo {
+
+    public static void main(String[] args){
+
+        Dog rocky = new Dog();
+        rocky.fetch();
+        rocky.makeSound();
+        feed(rocky);
+
+        Animal sasha = new Dog();
+        sasha.makeSound();
+        feed(sasha);
+
+        sasha = new Cat();
+        sasha.makeSound();
+        ((Cat) sasha).scratch();
+        feed(sasha);
+    }
+
+    public static void feed(Animal animal){
+
+        if(animal instanceof Dog){
+            System.out.println("here's your dog food");
+        }
+
+        else if(animal instanceof Cat){
+            System.out.println("here's your cat food");
+        }
+    }
+}

chapter11/Book.java

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+package chapter11;
+
+public class Book implements Product {
+
+    private double price;
+    private String name;
+    private String color;
+    private String author;
+    private int pages;
+    private String isbn;
+
+    @Override
+    public double getPrice() {
+        return price;
+    }
+
+    @Override
+    public void setPrice(double price) {
+        this.price = price;
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String getColor() {
+        return color;
+    }
+
+    @Override
+    public void setColor(String color) {
+        this.color = color;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public int getPages() {
+        return pages;
+    }
+
+    public void setPages(int pages) {
+        this.pages = pages;
+    }
+
+    public String getIsbn() {
+        return isbn;
+    }
+
+    public void setIsbn(String isbn) {
+        this.isbn = isbn;
+    }
+}

chapter11/Customer.java

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+package chapter11;
+
+public class Customer {
+
+    public static void main(String[] args){
+
+        Product book = new Book();
+        book.setPrice(9.99);
+    }
+}

chapter11/Product.java

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+package chapter11;
+
+public interface Product {
+
+    double getPrice();
+    void setPrice(double price);
+
+    String getName();
+    void setName(String name);
+
+    String getColor();
+    void setColor(String color);
+
+    default String getBarcode(){
+        return "no barcode";
+    }
+}

chapter11/Rectangle.java

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+package chapter11;
+
+public class Rectangle extends Shape {
+
+    private double length;
+    private double width;
+
+    public double getLength() {
+        return length;
+    }
+
+    public void setLength(double length) {
+        this.length = length;
+    }
+
+    public double getWidth() {
+        return width;
+    }
+
+    public void setWidth(double width) {
+        this.width = width;
+    }
+
+    public Rectangle(double length, double width){
+        setLength(length);
+        setWidth(width);
+    }
+
+    @Override
+    double calculateArea() {
+        return length * width;
+    }
+}

chapter11/Shape.java

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+package chapter11;
+
+public abstract class Shape {
+
+    abstract double calculateArea();
+
+    public void print(){
+        System.out.println("I am a shape");
+    }
+}

chapter11/ShapeTester.java

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+package chapter11;
+
+public class ShapeTester {
+
+    public static void main(String[] args){
+
+        Shape rectangle = new Rectangle(5, 7);
+        rectangle.print();
+        System.out.println(rectangle.calculateArea());
+    }
+}