[20-05-31][Design Model 9]COMPONENT

2020-05-31 10:54:29 阅读：197 来源： 互联网

标签：Leaf 05 Composite 31 Component leafMethod void 20 public

 1 package test_26_1;
 2 
 3 public abstract class Component {
 4 
 5     private String name;
 6     
 7     public Component() {
 8         
 9     }
10     
11     public Component(String name) {
12         this.name = name;
13     }
14 
15     public abstract void compositeAdd(Component c);
16 
17     public abstract void compositeRemove(Component c);
18 
19     public abstract void leafMethod();
20 
21     public String getName() {
22         return name;
23     }
24     
25 }

 1 package test_26_1;
 2 
 3 import java.util.ArrayList;
 4 import java.util.List;
 5 
 6 public class Composite extends Component {
 7 
 8     List<Component> list = new ArrayList<Component>();
 9     
10     public Composite() {
11         
12     }
13     
14     public Composite(String name) {
15         super(name);
16     }
17     
18     @Override
19     public void compositeAdd(Component c) {
20         
21         list.add(c);
22     }
23 
24     @Override
25     public void compositeRemove(Component c) {
26         
27         list.remove(c);
28     }
29 
30     @Override
31     public void leafMethod() {
32         
33         System.out.println(getName() + " Composite leafMethod()");
34         
35         for (Component component : list) {
36             component.leafMethod();
37         }
38     }
39     
40 }

 1 package test_26_1;
 2 
 3 public class Leaf extends Component {
 4     
 5     public Leaf() {
 6         
 7     }
 8     
 9     public Leaf(String name) {
10         super(name);
11     }
12 
13     @Override
14     public void compositeAdd(Component c) {
15         
16     }
17 
18     @Override
19     public void compositeRemove(Component c) {
20         
21     }
22 
23     @Override
24     public void leafMethod() {
25 
26         System.out.println(getName() + " Leaf leafMethod()");
27     }
28 
29 }

 1 package test_26_1;
 2 
 3 public class ComponentTest {
 4 
 5     public static void main(String[] args) {
 6 
 7         Composite root = new Composite("root");
 8         Composite branch1 = new Composite("branch1");
 9         Composite branch2 = new Composite("branch2");
10         Leaf leaf1_1 = new Leaf("leaf1_1");
11         Leaf leaf1_2 = new Leaf("leaf1_2");
12         Leaf leaf2_1 = new Leaf("leaf2_1");
13         Leaf leaf2_2 = new Leaf("leaf2_2");
14 
15         branch1.compositeAdd(leaf1_1);
16         branch1.compositeAdd(leaf1_2);
17         branch2.compositeAdd(leaf2_1);
18         branch2.compositeAdd(leaf2_2);
19         
20         root.compositeAdd(branch1);
21         root.compositeAdd(branch2);
22 
23         root.leafMethod();
24     }
25 }

结果如下：

root Composite leafMethod()
branch1 Composite leafMethod()
leaf1_1 Leaf leafMethod()
leaf1_2 Leaf leafMethod()
branch2 Composite leafMethod()
leaf2_1 Leaf leafMethod()
leaf2_2 Leaf leafMethod()

标签：Leaf,05,Composite,31,Component,leafMethod,void,20,public
来源： https://www.cnblogs.com/mirai3usi9/p/12996685.html

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。

ICode9

[20-05-31][Design Model 9]COMPONENT