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利用Java实现天气预报播报功能

目录

  • 实验代码
    • WeatherState.java
    • Weather.java
    • WeatherForecast.java
    • CloudyLittleState.java
    • CloudyDayState.java
    • HeavyRainState.java
    • LightRainState.java
  • 运行结果

    实验代码
    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 今天夜间:"); weatherBeijing.setState(new LightRainState()); weatherBeijing.show(); System.out.print("转:"); weatherBeijing.setState(new HeavyRainState()); weatherBeijing.show(); System.out.print("\n 明天白天:"); weatherBeijing.setState(new LightRainState()); weatherBeijing.show(); System.out.print("\n 明天夜间:"); weatherBeijing.setState(new CloudyLittleState()); weatherBeijing.show(); }}


    CloudyLittleState.java
    package lab2; public class CloudyLittleState implements WeatherState {public void showState() {System.out.print("少云,有时晴！"); }}

    【利用Java实现天气预报播报功能】
    CloudyDayState.java
    package lab2; public class CloudyDayState implements WeatherState{@Overridepublic void showState() {System.out.println("多云，为阴天！"); }}


    HeavyRainState.java
    package lab2; public class HeavyRainState implements WeatherState {@Overridepublic void showState() {System.out.println("有大雨来临！"); }}


    LightRainState.java
    package lab2; public class LightRainState implements WeatherState {@Overridepublic void showState() {System.out.println("小雨，几乎没有雨！"); }}


    运行结果 利用Java实现天气预报播报功能
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