Builder Mode Builders (create type)

Reference Documentation:

1. Design mode-the basis of reusable object-oriented software

2.http://blog.csdn.net/hguisu/article/details/7518060 (design mode (iii) Builder mode creator (created))

3.http://www.cnblogs.com/happyhippy/archive/2010/09/01/1814287.html (the Myth of Builder mode: to encapsulate the construction of complex objects is the builder mode.) ）

Knowledge of builder theory can be obtained from the above three articles;

Here's a case for builder.

Let's take a look at the structure of builder:

Here is the case: Buy KFC, choose the corresponding package, return the corresponding food to the user.

Code implementation:

Client.java:

Package com.rick.designpattern.builder;

/**
 * Created by MyPC on 2017/6/9.
 *
/public class Client {public

    void buy (int type) {
        builder builder = null;
        if (1 = = type) {
            builder = new ConcreteBuilder1 ();
        } else if (2 = = type) {
            builder = new ConcreteBuilder2 (); 
  } else {
            builder = new ConcreteBuilder3 ();
        }
        Directorcashier directorcashier = new Directorcashier ();
        Directorcashier.buildfood (builder);
        Builder.getproducts ();
    }

    public static void Main (string[] args) {
        Client client = new client ();
        Client.buy (2);
        System.out.println ("-------------");
        Client.buy (1);
        System.out.println ("-------------");
        Client.buy (3);

    }

}

Directorcashier.java:

Package com.rick.designpattern.builder;

/** *
 Instructor: Cashier
 * <p>
 * Created by MyPC on 2017/6/9.
 *
/public class Directorcashier {

    /**
     * Cashier Restaurant employee returned food *
     /public
    void Buildfood (Builder builder) {
        Builder.buildpart1 ();
        Builder.buildpart2 ();
    }
}

Builder.java:

Package com.rick.designpattern.builder;

/**
 * Created by MyPC on 2017/6/9.
 *
/Public abstract class Builder {

    /**
     * Creates the first part of the product *
     /public
    void BuildPart1 () {

    }

    /**
     * Create product second part *
     /public
    void BuildPart2 () {

    }

    /**
     * Return product
    */Public abstract void GetProducts ();

}

Concretebuilder1.java:

Package com.rick.designpattern.builder;

/**
 * Concrete Builder class: Restaurant staff, return package is: Hamburg two + drinks one
 * <p>
 * Created by MyPC on 2017/6/9.
 */Public
class ConcreteBuilder1 extends Builder {
    private Product product = null;

    Public ConcreteBuilder1 () {
        this.product = new product ();
    }

    @Override public
    void BuildPart1 () {
        product.add ("Hamburger", "2");
    }

    @Override public
    void BuildPart2 () {
        product.add ("Drink", "1");
    }

    @Override public
    void GetProducts () {
        product.getproducts ();
    }
}

Concretebuilder2.java:

Package com.rick.designpattern.builder;

/**
 * Concrete Builder class: Restaurant staff, Hamburg 1 + drinks 2
 * <p>
 * Created by MyPC on 2017/6/9.
 */Public
class ConcreteBuilder2 extends Builder {
    private Product product = null;

    Public ConcreteBuilder2 () {
        this.product = new product ();
    }
    
    @Override public
    void BuildPart1 () {
        product.add ("Hamburger", "1");
    }

    @Override public
    void BuildPart2 () {
        product.add ("Drink", "2");
    }

    @Override public
    void GetProducts () {
        product.getproducts ();
    }
}

Concretebuilder3.java:

Package com.rick.designpattern.builder;

/**
 * Created by MyPC on 2017/6/9.
 */Public
class ConcreteBuilder3 extends Builder {
    private Product product = null;

    Public ConcreteBuilder3 () {
        this.product = new product ();
    }

    @Override public
    void BuildPart1 () {
        product.add ("Hamburger", "3");
    }

    @Override public
    void GetProducts () {
        product.getproducts ();
    }
}

Product.java:

Package com.rick.designpattern.builder;

Import java.util.*;

/**
 * Created by MyPC on 2017/6/9.
 *
/public class Product {
    private map<string, string> products = new hashmap<string, string> ();

    /**
     * Add specific product */public
    void Add (string name, String value) {
        products.put (name, value);
    }

    public void GetProducts () {
        set<string> keys = Products.keyset ();
        for (String Key:keys) {
            System.out.println (key + "=" + products.get (key));}}}