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利用Java實(shí)現(xiàn)天氣預(yù)報(bào)播報(bào)功能

更新時(shí)間：2022年06月21日 15:55:32 作者：南風(fēng)如意

這篇文章主要為大家介紹了如何利用Java語言實(shí)現(xiàn)天氣預(yù)報(bào)播報(bào)功能，文中的示例代碼講解詳細(xì)，對(duì)我們學(xué)習(xí)Java有一定的幫助，需要的可以參考一下

實(shí)驗(yàn)代碼

WeatherState.java

package lab2;

public interface WeatherState {
    public void showState();
}

Weather.java

package lab2;

public class Weather {

    WeatherState state;

    public void show() {
        state.showState();
    }

    public void setState(WeatherState s) {
        state = s;
    }
}

WeatherForecast.java

package lab2;

public class WeatherForecast {

    public static void main(String args[]) {
        Weather weatherBeijing = new Weather();
        System.out.print("\n 今天白天:");
        weatherBeijing.setState(new CloudyDayState());
        weatherBeijing.show();
        System.out.print("\n 今天夜間:");
        weatherBeijing.setState(new LightRainState());
        weatherBeijing.show();
        System.out.print("轉(zhuǎn):");
        weatherBeijing.setState(new HeavyRainState());
        weatherBeijing.show();
        System.out.print("\n 明天白天:");
        weatherBeijing.setState(new LightRainState());
        weatherBeijing.show();
        System.out.print("\n 明天夜間:");
        weatherBeijing.setState(new CloudyLittleState());
        weatherBeijing.show();
    }
}

CloudyLittleState.java

package lab2;

public class CloudyLittleState implements WeatherState {

    public void showState() {
        System.out.print("少云,有時(shí)晴！");
    }
}

CloudyDayState.java

package lab2;

public class CloudyDayState implements WeatherState{

    @Override
    public void showState() {
        System.out.println("多云，為陰天！");
    }
}

HeavyRainState.java

package lab2;

public class HeavyRainState implements WeatherState {

    @Override
    public void showState() {
        System.out.println("有大雨來臨！");
    }
}

LightRainState.java

package lab2;

public class LightRainState implements WeatherState {

    @Override
    public void showState() {
        System.out.println("小雨，幾乎沒有雨！");
    }
}