javaÉè¼ÆÄ£Ê½_Compositeģʽ
Compositeģʽ(×éºÏ)
JavaÉîÈëµ½Ò»¶¨³Ì¶È,¾Í²»¿É±ÜÃâµÄÅöµ½Éè¼ÆÄ£Ê½ÕâÒ»¸ÅÄî,Á˽âÉè¼ÆÄ£Ê½,½«Ê¹×Ô¼º¶ÔjavaÖеĽӿڻò³éÏóÀàÓ¦ÓÃÓиüÉîµÄÀí½â.Éè¼ÆÄ£Ê½ÔÚjavaµÄÖÐÐÍϵͳÖÐÓ¦Óù㷺,×ñÑÒ»¶¨µÄ±à³Ìģʽ,²ÅÄÜʹ×Ô¼ºµÄ´úÂë±ãÓÚÀí½â,Ò×ÓÚ½»Á÷,Composite(×éºÏģʽ)ģʽÊDZȽϳ£ÓõÄÒ»¸öģʽ.
Composite×éºÏģʽ£¬½«¶ÔÏóÒÔÊ÷Ðνṹ×éÖ¯ÆðÀ´,ÒÔ´ï³É“²¿·Ö£ÕûÌå” µÄ²ã´Î½á¹¹£¬Ê¹µÃ¿Í»§¶Ë¶Ôµ¥¸ö¶ÔÏóºÍ×éºÏ¶ÔÏóµÄʹÓþßÓÐÒ»ÖÂÐÔ¡£
Óŵã: 1.ʹ¿Í»§¶Ëµ÷Óüòµ¥£¬¿Í»§¶Ë¿ÉÒÔÒ»ÖµÄʹÓÃ×éºÏ½á¹¹»òÆäÖе¥¸ö¶ÔÏó£¬Óû§¾Í²»±Ø¹ØÏµ×Ô¼º´¦ÀíµÄÊǵ¥¸ö¶ÔÏó»¹ÊÇÕû¸ö×éºÏ½á¹¹£¬Õâ¾Í¼ò»¯Á˿ͻ§¶Ë´úÂë¡£
2.¸üÈÝÒ×ÔÚ×éºÏÌåÄÚ¼ÓÈë¶ÔÏ󲿼þ. ¿Í»§¶Ë²»±ØÒòΪ¼ÓÈëÁËеĶÔÏ󲿼þ¶ø¸ü¸Ä´úÂë¡£
ÔÚ´ËдÁË6¸öjavaÀàÀ´ÃèÊö˵Ã÷CompositeÉè¼ÆÄ£Ê½µÄʵÏÖ·½Ê½£»
1¡¢ Circle.java ²¿¼þ-Ô²
2¡¢ Graph.java ²¿¼þ-³éÏóÀà
3¡¢ Line.java ²¿¼þ-Ïß
4¡¢ Picture.java ²¿¼þ-ͼ
5¡¢ Rectangle.java ²¿¼þ-·½
6¡¢ PictureTest.java ´øÓÐmain·½·¨µÄ²âÊÔÀà
=============== 1¡¢ Circle.java
package composite;
//²¿¼þ-Ô²
public class Circle extends Graph {
public void draw() {
System.out.println("Draw a circle.");
}
}
=============== 1 end
=============== 2¡¢ Graph.java
package composite;
import java.util.Iterator;
//²¿¼þ-³éÏóÀà
public abstract class Graph{
//»Í¼
public abstract void draw();
//Ôö¼ÓÒ»¸öͼÐÎ
public void add(Graph g){};
//ɾ³ýÒ»¸öͼÐÎ×é¼þ
public void remove(Graph g){};
//»ñµÃ×éºÏÌåµÄÄÚ²¿²¿¼þ
public Iterator<Graph> iter(){return null;};
}
=============== 2 end
=============== 3¡¢ Line.java
package composite;
//²¿¼þ-Ïß
public class Line extends Graph {
public void draw() {
System.out.p
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