jameszhang wrote:
最好是一个事物两种方式比较,东一个西一个不理解

衣服也是对象,和JAMES组合在一起 不就是COMPOSITE吗?哈哈

public class Client
{
  public Client()
  {
  }
  public static void main(String args[])
  {
    Worker james = new James();
    SoldierDecorator jamesSoldier = new SoldierDecorator(james);
    System.out.println(jamesSoldier.getJob());
  }

}

interface Worker
{
  public String getJob();
}

class James
    implements Worker
{
  public String getJob()
  {
    return "打工的";
  }
}

class SoldierDecorator implements Worker
{
  private Worker man;
  public SoldierDecorator(Worker man)
  {
    this.man = man;
  }

  public String getJob()
  {
    return "在部队" + this.man.getJob();
  }

}

class DeveloperDecorator implements Worker
{
   private Worker man;
   public DeveloperDecorator(Worker man)
   {
     this.man = man;
   }
   public String getJob()
   {
     return "在软件公司" +this.man.getJob();
   } 
}

public class ClientA
{
  public ClientA()
  {
  }
  public static void main(String args[])
  {
     PourTeam cjsdn = new PourTeam();
     Nothing nothing = new Nothing();
     Wes109 wes109 = new Wes109();     
     Jameszhang james = new Jameszhang();
     
     cjsdn.addPourMan(wes109);
     cjsdn.addPourMan(nothing);
     cjsdn.addPourMan(james);
     
     System.out.println(cjsdn.getWisdom());
     
  }

}
interface PourMan
{
   public String getWisdom();
}
 
 
class Wes109 implements PourMan
{
   public String getWisdom()
  {
     return "一个人走";
  }
  
}

class Nothing implements PourMan
{
  public String getWisdom()
 {
    return " 我等待..";
 }
  
}
 
 class Jameszhang implements PourMan
 {
   public String getWisdom()
   {
      return "灌...灌...灌...灌";
   }
 }
 
 class PourTeam implements PourMan
 {
   private java.util.ArrayList pourManList = new java.util.ArrayList();
   public void addPourMan(PourMan pourman)
   {
     pourManList.add(pourman);
   }
   public String getWisdom()
   {
     String result="";
     for(int i=0;i<pourManList.size();i++)
     {
       result+=((PourMan)pourManList.get(i)).getWisdom();
     }
     return result;
   } 
 }

floater wrote:
Decorator:
Change Human to Worker for a better name, because you have getJob().
SoldierDecorator and DeveloperDecorator should implement Human interface too.
Then we could do a chain decoration to return something like 在 部队 软件公司 打工的
SoldierDecorator jamesSoldier = new SoldierDecorator(new DeveloperDecorator(james));

Change Cjsdn_pour to CjsdnPourTeam, for
1. java naming convention
2. PourMan vs PourTeam

floater wrote:
软件公司's owner is 部队.

I've had several times when I need to chain them together. Otherwise, there would be duplicated code.