设计模式--建造者模式

public class Person {
    private String head;
    private String body;
    private String hands;
    private String feet;

    public String getHead() {
        return head;
    }

    public void setHead(String head) {
        this.head = head;
    }

    public String getBody() {
        return body;
    }

    public void setBody(String body) {
        this.body = body;
    }

    public String getHands() {
        return hands;
    }

    public void setHands(String hands) {
        this.hands = hands;
    }

    public String getFeet() {
        return feet;
    }

    public void setFeet(String feet) {
        this.feet = feet;
    }

}

public class Man extends Person {
    public Man() {
        System.out.println("创建男人");
    }
}

public class Woman extends Person {
    public Woman() {
        System.out.println("开始创建女人");
    }
}

public abstract class Builder {

    abstract void buildHead();
    abstract void buildBody();
    abstract void buildHands();
    abstract void buildFeet();
    abstract Person buildPerson();

}

public class ManBuilder extends Builder{
    private Man man;

    public ManBuilder() {
        this.man = new Man();
    }

    @Override
    void buildHead() {
        System.out.println("创建男人头部");
        man.setHead("创建男人头部");
    }

    @Override
    void buildBody() {
        System.out.println("创建男人身体");
        man.setBody("创建男人身体");
    }

    @Override
    void buildHands() {
        System.out.println("创建男人双手");
        man.setHands("创建男人双手");
    }

    @Override
    void buildFeet() {
        System.out.println("创建男人双脚");
        man.setFeet("创建男人手脚");
    }

    @Override
    Person buildPerson() {
        return man;
    }
}

public class WomanBuilder extends Builder{
    private Woman woman;

    public WomanBuilder() {
        this.woman = new Woman();
    }

    @Override
    void buildHead() {
        System.out.println("创建女人头部");
        woman.setHead("创建女人头部");
    }

    @Override
    void buildBody() {
        System.out.println("创建女人身体");
        woman.setBody("创建女人身体");
    }

    @Override
    void buildHands() {
        System.out.println("创建女人双手");
        woman.setHands("创建女人双手");
    }

    @Override
    void buildFeet() {
        System.out.println("创建女人双脚");
        woman.setFeet("创建女人手脚");
    }

    @Override
    Person buildPerson() {
        return woman;
    }
}

public class Director {
    public Person construct(Builder builder){
        builder.buildHead();
        builder.buildBody();
        builder.buildFeet();
        builder.buildHands();
        return builder.buildPerson();
    }

    public static void main(String[] args) {
        Director director = new Director();
        director.construct(new ManBuilder());
    }
}