Pizza
public abstract class Pizza {
// 披萨名称
private String pizzaName;
/**
* 披萨准备工作
*/
public abstract void prepare();
public void bake() {
System.out.println(pizzaName + "正在烘烤");
}
public void cut() {
System.out.println(pizzaName + "正在剪切");
}
public void pack() {
System.out.println(pizzaName + "正在打包");
}
public void setPizzaName(String pizzaName) {
this.pizzaName = pizzaName;
}
}
BJCheesePizza
public class BJCheesePizza extends Pizza{
@Override
public void prepare() {
setPizzaName("北京奶酪披萨");
System.out.println("北京奶酪披萨正在准备中");
}
}
BJPepperPizza
public class BJPepperPizza extends Pizza {
@Override
public void prepare() {
setPizzaName("北京胡椒披萨");
System.out.println("北京胡椒披萨正在准备中");
}
}
LDCheesePizza
public class LDCheesePizza extends Pizza {
@Override
public void prepare() {
setPizzaName("伦敦奶酪披萨");
System.out.println("伦敦奶酪披萨正在准备中");
}
}
LDPepperPizza
public class LDPepperPizza extends Pizza{
@Override
public void prepare() {
setPizzaName("伦敦胡椒披萨");
System.out.println("伦敦胡椒披萨正在准备中");
}
}
AbsFactory
public interface AbsFactory {
/**
* 创建pizza
* @param pizzaType 披萨类型
* @return 需要创建的pizza
*/
Pizza createPizza(String pizzaType);
}
BJFactory
public class BJFactory implements AbsFactory{
@Override
public Pizza createPizza(String pizzaType) {
if ("cheese".equals(pizzaType)) {
return new BJCheesePizza();
} else if ("pepper".equals(pizzaType)) {
return new BJPepperPizza();
}
return null;
}
}
LDFactory
public class LDFactory implements AbsFactory {
@Override
public Pizza createPizza(String pizzaType) {
if ("cheese".equals(pizzaType)) {
return new LDCheesePizza();
} else if ("pepper".equals(pizzaType)) {
return new LDCheesePizza();
}
return null;
}
}
OrderPizza
public class OrderPizza {
public OrderPizza(AbsFactory factory) {
handlerPizza(factory);
}
private void handlerPizza(AbsFactory factory) {
do {
String pizzaType = getPizzaType();
Pizza pizza = factory.createPizza(pizzaType);
if (Objects.nonNull(pizza)) {
pizza.prepare();
pizza.bake();
pizza.cut();
pizza.pack();
} else {
System.out.println("输入的pizza目前不支持制作,请等待");
break;
}
} while (true);
}
/**
* 获取要制作的pizza
*
* @return pizza种类
*/
private String getPizzaType() {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
try {
System.out.print("请输入要订购的披萨：");
String pizzaType = reader.readLine();
System.out.println("要订阅的pizza种类：" + pizzaType);
return pizzaType;
} catch (IOException e) {
e.printStackTrace();
return "";
}
}
}
PizzaStore
public class PizzaStore {
public static void main(String[] args) {
// new OrderPizza(new LDFactory());
new OrderPizza(new BJFactory());
}
}