197
【设计模式】【命令模式】
/**
* Description:
* <br/>网站: <a href="https://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2012, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class ProcessArray
{
//定义一个each()方法，用于处理数组，
public void each(int[] target , Command cmd)
{
cmd.process(target);
}
}
/**
* Description:
* <br/>网站: <a href="https://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2012, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public interface Command
{
//接口里定义的process方法用于封装“处理行为”
void process(int[] target);
}
/**
* Description:
* <br/>网站: <a href="https://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2012, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class CommandTest
{
public static void main(String[] args)
{
ProcessArray pa = new ProcessArray();
int[] target = {3, -4, 6, 4};
//第一次处理数组，具体处理行为取决于Command对象
pa.each(target , new Command()
{
//重写process()方法，决定具体的处理行为
public void process(int[] target)
{
for (int tmp : target )
{
System.out.println("迭代输出目标数组的元素:" + tmp);
}
}
});
System.out.println("------------------");
//第二次处理数组，具体处理行为取决于Command对象
pa.each(target , new Command()
{
//重写process方法，决定具体的处理行为
public void process(int[] target)
{
int sum = 0;
for (int tmp : target )
{
sum += tmp;
}
System.out.println("数组元素的总和是:" + sum);
}
});
}
}
最后更新：2017-04-04 07:03:38