java.io.FileNotFoundException：storageemulated0New file.txt：打开失败：EACCES（权限被拒绝）

权限被拒绝导致的文件打开失败问题

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class FileExample {
    public static void main(String[] args) {
        try {
            File file = new File("/storage/emulated/0/New file.txt");
            Scanner scanner = new Scanner(file);
            while (scanner.hasNextLine()) {
                String line = scanner.nextLine();
                System.out.println(line);
            }
            scanner.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }
}