问Java解析字符串错误:线程"main“java.util.NoSuchElementException中出现异常

EN

Exception in thread "main" java.util.NoSuchElementException: No line found
at java.base/java.util.Scanner.nextLine(Scanner.java:1651)
at ParseStrings.main(ParseStrings.java:40)

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner scnr = new Scanner(System.in);

        String userInput = "";

        System.out.println("Enter input string:");
        userInput = scnr.nextLine();

        while (!userInput.equals("q")) {

            while (userInput.contains(",") == false) {
                System.out.println("Error: No comma in string");
                System.out.println("Enter input string:");
                userInput = scnr.nextLine();
            }

            String[] myArray = userInput.split(",");

            System.out.println("First word: " + myArray[0]);
            System.out.println("Second word: " + myArray[1]);

            //get the next input
            System.out.println("Enter input string:");
            userInput = scnr.nextLine();

        }

    }

}