相关代码：

package com.imooc.weather;

public class Weather {
//私有属性：温度，湿度
	private int temperature;
	private int humidity;
	boolean flag=false;

//getter和setter属性
	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;
	}

	// 生成天气数据的方法public void generate(), 使用随机数获取0-40度之间的温度，0-100之间的湿度.
	public synchronized void generate() {
		if(!flag) {
			try {
				wait();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	temperature=(int)(Math.random()*40);
	humidity=(int)(Math.random()*100);
	System.out.println("生成天气数据"+toString());
	flag=false;
	notifyAll();
	}

	// 读取天气数据的方法public void read()
	public synchronized void read() {
		if(flag) {
			try {
				wait();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		System.out.println("读取天气数据"+toString());
		flag=false;
		notifyAll();
	}
	//toString结构
	@Override
	public String toString() {
		return " [温度：" + temperature + ", 湿度：" + humidity + "]";

	}


	}

相关代码：

package com.imooc.weather;

public class GenerateWeather implements Runnable { 
	Weather weather;
	GenerateWeather(Weather weather){
			this.weather=weather;
	}
	@Override
	public void run() {
		 int i=0;
		 while(i<=100){
			 weather.generate();
			 i++;
			 try {
				Thread.sleep(5000);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		 }		
	}
}

相关代码：

package com.imooc.weather;

public class ReadWeather implements Runnable { 
	 Weather weather;
	 ReadWeather(Weather weather){
		 this.weather=weather;
	 }
	@Override
	public void run() {
		 int i=0;
		 while(i<=100){
		 weather.read();
		 i++;
		 try {
			Thread.sleep(100);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}
   }
}

相关代码：

​package com.imooc.weather;

public class Test {

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

}