import java.io.File;
import java.io.FileFilter;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

    public static void main(String[] args) throws Exception {
        /*URL url = new URL("http://yszzdown01.dreams-plus.com/y1/privacy_policy.txt");
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.connect();
        InputStream in = connection.getInputStream();
        byte[] bytes = new byte[1024];
        while(-1 != in.read(bytes)){
            System.out.print(new String(bytes));
        }
        in.close();
        System.out.println(connection.getResponseCode());*/
        t();
    }

    /**
     * 测试java8
     */
    public static void t(){
        String path = "G:\\video";
        File file = new File(path);
        System.out.println(file.isHidden());
        File[] files = file.listFiles(File::isHidden);
        System.out.println(files.length + ">>>文件数量");
        LinkedList<String> strings = new LinkedList<>();
        strings.add("123543");
        strings.add("asd");
        strings.add("2s312");
        strings.add("!$^$");
        new Main().pp(strings, (String str) -> str + "test");
    }

    public void pp(List<String> list, Te t){
        for (String s : list) {
            System.out.println(t.accept(s));
        }
    }

    interface Te{
        String accept(String a);
    }

    public static void print(String a, String b){
        System.out.println(a + "==" + b);
    }
    public static void print2(String a){
        System.out.println(a + "--");
    }
}