package com.imooc.homeworktest;

public class GenerateWeather implements Runnable {
	Weather weather;

	public GenerateWeather(Weather weather) {
		this.weather=weather;
	}


	@Override
	public void run() {
		while(true) {
			weather.generate();
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

}

package com.imooc.homeworktest;

public class ReadWeather implements Runnable {
	Weather weather;

	public ReadWeather(Weather weather) {
		this.weather=weather;
	}

	@Override
	public void run() {
		while(true) {
			weather.read();
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

package com.imooc.homeworktest;

public class Weather {
	private int temperature;
	private int humidity;
	boolean flag;

	public Weather() {

	}

	public int getTemperature() {
		return temperature;
	}

	public void setTemperature(int temperature) {
		this.temperature = temperature;
	}

	public int getHumidity() {
		return humidity;
	}

	public void setHumidity(int humidity) {
		this.humidity = humidity;
	}

	public boolean isFlag() {
		return flag;
	}

	public void setFlag(boolean flag) {
		this.flag = flag;
	}

	@Override
	public String toString() {
		return "读取天气数据"+"Weather 温度" + temperature + ", 湿度" + humidity;
	}

	public synchronized void generate() {
		if(flag=true) {
			try {
				wait();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		temperature = (int)(Math.random()*40+1);
		humidity = (int)(Math.random()*100+1);
		System.out.println("生成天气数据"+"温度"+temperature+"湿度"+humidity);
		flag=false;
		notifyAll();	
	}
	public synchronized void read() {
		if(flag=false) {
			try {
				wait();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		temperature=this.temperature;
		humidity=this.humidity;
		System.out.println("读取天气数据"+"温度" + temperature + "湿度" + humidity);
		flag=true;
		notifyAll();
	}

}

​package com.imooc.homeworktest;

public class WeatherTest {

	public static void main(String[] args) {
		Weather weather = new Weather();
		new Thread(new GenerateWeather(weather)).start();
		new Thread(new ReadWeather(weather)).start();
	}

}