适配器模式

public interface PlayerCount {

String getServerName();

int getPlayerCount();

}

public class ServerOne implements PlayerCount {

@Override
public String getServerName() {
return "一服";
}

@Override
public int getPlayerCount() {
return Utility.getOnlinePlayerCount(1);
}

}

Utility.getOnlinePlayerCount(1);//该方法已经过时，修改办法：

public class ServerOne implements PlayerCount {

private ServerFirst mServerFirst;

public ServerOne() {
mServerFirst = new ServerFirst();
}

@Override
public String getServerName() {
return "一服";
}

@Override
public int getPlayerCount() {
return mServerFirst.getOnlinePlayerCount();
}

}