playcommand.java

来自「《JAVA与模式》附书中源代码」· Java 代码 · 共 21 行

package com.javapatterns.command.audioplayer2;

/**
 *  This class plays the role of Concrete Command
 */

public class PlayCommand implements Command
{
	private AudioPlayer myAudio;

	public PlayCommand ( AudioPlayer a)
    {
		myAudio = a;
	}

	public void execute( )
    {
		myAudio.play();
	}
}