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blog信息 |
blog名称:
日志总数:17
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访问次数:123596
建立时间:2005年4月19日 | |
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 设计模式之Composite(组合) |
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参照该模式写的源码例子
package myprojects.composite;import java.io.*;import java.util.*;import java.util.ArrayList;
abstract class mybase{ public String name; public Iterator iter() { return null; } public mybase(String name){ this.name=name; } public void print() { System.out.println( "mybase"+name + " print called"); } public boolean add(mybase thismybase) { return false; } }class Composite extends mybase{ private int i=0; private ArrayList equipment=new ArrayList(); public Composite(String name){super(name);} public boolean add(mybase equipment) { this.equipment.add(equipment); return true; } public void print() { System.out.println( name + " print called"); Iterator iter=equipment.iterator(); while(iter.hasNext()) { ((mybase)iter.next()).print(); }
}
}
class Chassis extends Composite{public Chassis(String name) { super(name); }//System.out.println( "Chassis"+ name + " print called");//super.print();//}} class Cabinet extends Composite{public Cabinet(String name) { super(name); }//public void print(){//System.out.println( "Cabinet"+ name + " print called");//super.print();//}}class mydisk extends mybase{public mydisk(String name){super(name);}public void print(){System.out.println( "mydisk"+ name + " print called");}} public class Disk{ public static void main(String arg[]) { Chassis chassis=new Chassis("chassis"); Cabinet cabinet=new Cabinet("cabinet"); mydisk md=new mydisk("mydisk"); chassis.add(md); chassis.add(md); chassis.add(md); chassis.add(md); cabinet.add(chassis); Composite com =new Composite("com"); com.add(cabinet); com.add(cabinet); com.print(); } }
转载自: http://www.jdon.com/designpatterns/composite.htm | |
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