public interface PCI
{
void start();
void stop();
}public class NetWordCard implement PCI
{
public void start()
{
System.out.println("send......");
} public void stop()
{
System.out.println("stop....");
}
}public class SoundCard implement PCI
{
public void start()
{
System.out.println("dududu..du");
}
public void stop()
{
System.out.println("nothing.....");
}}public class MainBoard
{
public void usemainboard(PCI p)
{
p.start();
p.stop();
}
}public class Assembler
{
public static void main(String args)
{
MainBoard mb= new MainBoard();
NetWordCard nwc=new NetWordCard();
SoundCard sc= new SoundCard();
mb.usemainboard(nwc);
mb.usemainbord(sc);
}
}
{
void start();
void stop();
}public class NetWordCard implement PCI
{
public void start()
{
System.out.println("send......");
} public void stop()
{
System.out.println("stop....");
}
}public class SoundCard implement PCI
{
public void start()
{
System.out.println("dududu..du");
}
public void stop()
{
System.out.println("nothing.....");
}}public class MainBoard
{
public void usemainboard(PCI p)
{
p.start();
p.stop();
}
}public class Assembler
{
public static void main(String args)
{
MainBoard mb= new MainBoard();
NetWordCard nwc=new NetWordCard();
SoundCard sc= new SoundCard();
mb.usemainboard(nwc);
mb.usemainbord(sc);
}
}
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货