2022.7.5DAY597

        Take the exam this afternoon 《 Marxist principles 》, I reviewed it in the morning and evening 《 Digital circuit and logic design 》. Brush a set of questions , Then consolidate the knowledge points you don't understand , Read the midterm exam questions . This process is really afraid to relax a little and delete Tiktok , Tencent video , To reduce unnecessary energy waste . Before dinner, I sat quietly by the lake 0.5 Hours , The scenery of the small lake is really insatiable . Read when you are tired of doing exercises , After reading for more than ten minutes, I turned to review , Reading is really a good way to rest , Rest by reading , I also focused a lot on the whole process . After the exam, you must play skateboarding hard , As a reward for reviewing urgently these days .

read ：《 Deep rest 》

English ： read "the king of the golden mountain"

public class Cat implements Jumpping{
    public void jump(){
        System.out.println(" The cat can be raised ");
    }

}

public class JumpingDemo {
    public static void main(String[] args) {
        JumpingOperator jo=new JumpingOperator();
        Jumpping j=new Cat();
        jo.method(j);
    }
}

public class JumpingOperator {
    public void method (Jumpping j)
    {
        j.jump();
    }
}

public interface Jumpping {
    void jump();
}