相关代码：

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();
    }
}

相关代码：

public class Weather {
    private int temperature;
    private int humidity;相关代码：
    boolean loop = false;

    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 synchronized void generate() {
        if (!loop) {
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            temperature = (int) (Math.random() * 40);
            humidity = (int) (Math.random() * 100);
            System.out.println("生成天气数据" + toString());
            loop = false;
            notifyAll();
        }
    }

    public synchronized void read() {
        if (loop) {
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println("读取天气数据" + toString());
            loop = true;
            notifyAll();
        }
    }

    @Override
    public String toString() {
        return "温度：" + temperature +
                ", 湿度：" + humidity;
    }
}

相关代码：

public class GenerateWeather implements Runnable {
    Weather weather;

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

    @Override
    public void run() {
        int i = 0;
        while (i <= 100) {
            i++;
            weather.generate();
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

相关代码：

public class ReadWeather implements Runnable {
    Weather weather;

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

    @Override
    public void run() {
        int i = 0;
        while (i <= 100) {
            i++;
            weather.read();
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

代码加入中断和唤醒后运行就什么都不出现，不加入还能就能跑