多个扫描程序导致java.util.NoSuchElementException？

Question

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;

public class Scheduler {

    ProcessList processes = new ProcessList();
    int NUM_PROCESSES;
    int TOTAL_CPU_TIME = 0;
    File randomNumbers = new File("random-numbers.txt");
    Scanner numberScanner;

    public void getInput(String args[]) throws FileNotFoundException{

      Scanner inputScanner = new Scanner(System.in);
      numberScanner = new Scanner(randomNumbers);
      ArrayList<String> inputAsList = new ArrayList<String>();

      while (inputScanner.hasNext()){
        String nextInput = inputScanner.next();
        inputAsList.add(nextInput);
      }

      inputScanner.close();
      organizeInput(inputAsList);

    }
}

每当我尝试为numberScanner重做时，我总是会收到此错误。我尝试不关闭其他扫描仪，inputScanner，正如其他问题中所建议的那样，但它没有解决问题。