public class ZhugeLiang {
    Command command;

    public void setCommand(Command command){
        this.command = command;
    }

    public void publishCommand(){
        command.execute();
    }

}

public class General {

    private String name = "";

    public General(String name) {
        this.name = name;
    }

    public void execute(Command command){
        Log.e("諸葛亮命令"+name,command.getAction());
    }

}

public class YushanCommand extends Command {
    public YushanCommand(General general) {
        super(general);
    }

    @Override
    public String getAction() {
        return "引一千軍往豫山埋伏……縱兵出擊，就焚其糧草。";
    }
}

public class AnlinCommand extends Command {
    public AnlinCommand(General general) {
        super(general);
    }

    @Override
    public String getAction() {
        return "引一千軍去安林背后山谷中埋伏，……向博望城舊屯糧草處縱火燒之。";
    }
}

public class SeduceCommand extends Command {
    public SeduceCommand(General general) {
        super(general);
    }

    @Override
    public String getAction() {
        return "為前部，不要贏，只要輸。";
    }
}

ZhugeLiang zhugeLiang = new ZhugeLiang();
zhugeLiang.setCommand(new YushanCommand(new General("關羽")));
zhugeLiang.publishCommand();
zhugeLiang.setCommand(new AnlinCommand(new General("張飛")));
zhugeLiang.publishCommand();
zhugeLiang.setCommand(new SeduceCommand(new General("趙云")));
zhugeLiang.publishCommand();