2022.DAY599

        I took the English exam today , It's over 《 Deep rest -115》, And then I looked at it again 《 Lifelong growth 》, Played 30 Minute skateboard , It seems quite boring , Now I know , The fun is not skateboarding , But like-minded people gathered together . In the afternoon, I reviewed 《 AI 》, I reviewed in the evening 《 Automatic control principle 》.

        Recently I watched a video about teacher Luo Xiang , Teacher Luo's videos always bring me a sense of human soberness . This video discusses whether there is a qualitative and quantitative difference between happiness .“    Are you happy to read little yellow books , It seems to be very happy , Are you happy to see Guo Degang's crosstalk , I'm also very happy , See if Shakespeare is happy , It seems happy too, right ！ I often ask people , If these three works can also bring you happiness , Which kind of happiness will you choose  ？ The more happiness that can embody human dignity , The more is the greatest happiness , Because it is related to human dignity , Have a lot of happiness , Just indulgent happiness , The more happiness that can embody human dignity , The more is a kind of advanced happiness .” When you indulge in low-level happiness , You are actually addicted to the happiness of animals , You have forgotten the happiness that human beings should have , You are in the happiness of animals every day , Eat, drink, Lazar, sleep , Wine, lust, fame and wealth , This kind of animal happiness , Feel the achievement , You forget people , People should have a higher pursuit . Through this video , I thought about , Reading can make me feel happy , Skateboarding makes me happy , Watching anime can make me feel happy , Brushing videos can make me feel happy . Among these kinds of happiness , Reading is a senior pleasure , Skateboarding , How do you say , It's similar to Guo Degang's crosstalk , It is difficult to evaluate its quality . Watching anime is a low-level pleasure . Short video , Cut both ways , It also depends on the quality of the video you brush ！ The video quality in Tiktok is uneven , It's really about speeches , And inspirational , High quality videos that can cause people to think , There are also some vulgar videos , It depends on how you use it ！

        in general , Teacher Luo's video is too touching , Be sure to collect more , Pay more attention to talent . Philosophy of life , It's probably the eternal topic of mankind @！

read ：《 Deep rest 》  《 Lifelong growth 》

English ： read “doctor konwall”   peasont n a farmer   lord n Your Excellency   conceal v hide

public class CollectionDemo {
    public static void main(String[] args) {
        Collection <String> C=new ArrayList<String>();
        C.add("hello");
        C.add("world");
        C.add("JAVA");
        System.out.println(C);
    }
}

Collection Collection Overview

Is the top-level interface for singleton collections , It represents a set of objects , These objects are also called Collection The elements of

establish Collection The object of the collection

• Polymorphism
• Specific implementation classes ArrayList