java设计模式学习笔记-2-工厂模式

简单工厂模式

public abstract class Pizza{
    protected String name;
    public abstract void prepare();
    public void bake(){
        
    }
    public void cut(){
        
    }
    public void box(){
        
    }
    public void setName(String name){
        
    }
    
}

public class ChesePizza extends Pizza{
    public void prepare(){
        
    }
}

public class GreekPizza extends Pizza{
    pulic void prepare(){
        
    }
}
public class PepperPizza extends Pizza{
    public void peroare(){
        
    }
}

public class OrderPizza{
    public OrderPizza(){
        Pizza pizza = null;
        String orderType;
        do{
            orderType = getType;
            if(orderType.equals("greek")){
                pizza = new GreekPizza();
                pizza.setName("xxxx");
            }else if(orderType.equals("cheese")){
                pizza = new CheesePizza();
                pizza.setName("xxxx");
            }else if(orderType.equals("pepper")){
                 pizza = new PepperPizza();
                pizza.setName("xxxx");
            }else{
                break;
            }
            pizza.prepare();
            pizza.bake();
            pizza.cut();
            pizza.cut();
        }while(true);
    }
    
    private String getType(){
        try{
            BufferedReader strin = new BufferedReader(new InputStreamReader(System.in));
            String str = strin.readLine();
            return str;
        }catch(IOException e){
            e.printStackTreace();
            return "";
        }
    }
}

public PizzaStore{
    public static void main(String[] args){
        new OrderPizza();
    }
}

//简单工厂类
public class SimpleFactory{
//根据orderType返回对应Pizza
    public Pizza createPizza(String orderType){
        Pizza pizza = null;
        if(orderType.equals("greek")){
            pizza = new GreekPizza();
            pizza.setName("xxxx");
        }else if(orderType.equals("cheese")){
            pizza = new CheesePizza();
            pizza.setName("xxxx");
        }else if(orderType.equals("pepper")){
             pizza = new PepperPizza();
            pizza.setName("xxxx");
        }
        return pizza;
    }
}

public class OrderPizza{
    SimpleFactory simpleFactory;
    Pizza pizza = null;
    
    public OrderPizza(SimpleFactory simpleFactory){
        setFactory(simpleFactory);
    }
    
    public void setFactory(SimpleFactory simpleFactory){
        String orderType = "";
        this.simpleFactory = simpleFactory;
        
        do{
            orderType = getType();
            pizza = this.simpleFactory.createPizza(orderType);
            if(pizza!=null){
                pizza.prepare();
                pizza.bake();
                pizza.cut();
                pizza.box();
            }else{
                System.out.println("失败");
            }
        }while(true);
    }
    private String getType(){
        try{
            BufferedReader strin = new BufferedReader(new InputStreamReader(System.in));
            String str = strin.readLine();
            return str;
        }catch(IOException e){
            e.printStackTreace();
            return "";
        }
    }
}

//简单工厂类
public class SimpleFactory{
//根据orderType返回对应Pizza
    public Pizza createPizza(String orderType){
        Pizza pizza = null;
        if(orderType.equals("greek")){
            pizza = new GreekPizza();
            pizza.setName("xxxx");
        }else if(orderType.equals("cheese")){
            pizza = new CheesePizza();
            pizza.setName("xxxx");
        }else if(orderType.equals("pepper")){
             pizza = new PepperPizza();
            pizza.setName("xxxx");
        }
        return pizza;
    }
    public static Pizza createPizza2(String orderType){
        Pizza pizza = null;
        if(orderType.equals("greek")){
            pizza = new GreekPizza();
            pizza.setName("xxxx");
        }else if(orderType.equals("cheese")){
            pizza = new CheesePizza();
            pizza.setName("xxxx");
        }else if(orderType.equals("pepper")){
             pizza = new PepperPizza();
            pizza.setName("xxxx");
        }
        return pizza;
    }
}

public class OrderPizza2{
    Pizza pizza = null;
    String orderType = "";
    public OrderPizza2(){
        do{
            orderType = getType();
            pizza = SimpleFactory.createPizza2(orderType);
            if(pizza!=null){
                pizza.prepare();
                pizza.bake();
                pizza.cut();
                pizza.box();
            }else{
                System.out.println("失败");
            }
        }while(true);
    }
    
    private String getType(){
        try{
            BufferedReader strin = new BufferedReader(new InputStreamReader(System.in));
            String str = strin.readLine();
            return str;
        }catch(IOException e){
            e.printStackTreace();
            return "";
        }
    }
}

工厂方法模式

public abstract class Pizza{
    protected String name;
    public abstract void prepare();
    public void bake(){}
    public void cut(){}
    public void box(){}
    public void setName(String name){
        
    }
}

public class BJCheesePizza extends Pizza{
    //北京奶酪
    public void prepare(){
        
    } 
}
public class BJPepperPizza extends Pizza{
    //北京胡椒
    public void prepare(){
        
    } 
}
public class LDCheesePizza extends Pizza{
    //伦敦奶酪
    public void prepare(){
        
    } 
}
public class LDPepperPizza extends Pizza{
    //伦敦胡椒
    public void prepare(){
        
    } 
}

public abstract class OrderPizza{

    abstract Pizza createPizza(String orderType);
    public OrderPizza(){
        Pizza pizza = null;
        String orderType;
        do{
            orderType = getType();
            pizza = createPizza(orderType);
            if(pizza!=null){
                pizza.prepare();
                pizza.bake();
                pizza.cut();
                pizza.box();
            }else{
                System.out.println("失败");
            }
        }while(true);
    
    }
    
    private String getType(){
        try{
            BufferedReader strin = new BufferedReader(new InputStreamReader(System.in));
            String str = strin.readLine();
            return str;
        }catch(IOException e){
            e.printStackTreace();
            return "";
        }
    }
}

public classBJOrderPizza extends OrderPizza{
    Pizza createPizza(String orderType){
        Pizza pizza = null;
        if(orderType.equals("cheese")){
            pizza = new BJCheesePizza();
        }esle if(orderType.equals("pepper")){
            pizza = new BJPepperPizze();
        }
        return pizza;
    }
}

public classLDOrderPizza extends OrderPizza{
    Pizza createPizza(String orderType){
        Pizza pizza = null;
        if(orderType.equals("cheese")){
            pizza = new LDCheesePizza();
        }esle if(orderType.equals("pepper")){
            pizza = new LDPepperPizze();
        }
        return pizza;
    }
}

抽象工厂模式

public interface AbsFactory{
    public Pizza createPizza(String orderType);
}

public class BJFactory implements AbsFactory{
    public Pizza cratePizza(String orderType){
       Pizza pizza = null;
       if(orderType.equals("cheese")){
           pizza = new BJCheesePizza();
       }else if(orderType.equals("pepper")){
           pizza = new BJPepperPizza();
       }
       return pizza;
    }
}
public class LDFactory implements AbsFactory{
    public Pizza cratePizza(String orderType){
       Pizza pizza = null;
       if(orderType.equals("cheese")){
           pizza = new LDCheesePizza();
       }else if(orderType.equals("pepper")){
           pizza = new LDPepperPizza();
       }
       return pizza;
    }
}

public class OrderPizza{
    AbsFactory factory;
    
    public OrderPizza(AbsFactory factory){
        setFactory(factory);
    }
    
    private void setFactory(AbsFactory factory){
        Pizza pizza = null;
        String orderType = "";
        this.factory = factory;
        do{
            orderType = getType();
            pizza = factory.createPizza(orderType);
            if(pizza!=null){
                pizza.prepare();
                pizza.bake();
                pizza.cut();
                pizza.box();
            }else{
                System.out.println("失败");
            }
        }ehile(true);
    }
    
     private String getType(){
        try{
            BufferedReader strin = new BufferedReader(new InputStreamReader(System.in));
            String str = strin.readLine();
            return str;
        }catch(IOException e){
            e.printStackTreace();
            return "";
        }
    }
}