Java初学者:忽略While循环

Question

import java.io.*;
import java.util.*;

public class Hellno {
    public static void main(String[] args) {
        try {
            Scanner s = new Scanner(new File("words.txt"));
            findBiggest(s);
            System.out.println(findBiggest(s));
        } catch (IOException e) {
            System.out.println("Can't find that file");
        }
    }

    public static String findBiggest(Scanner scan) {
        int count0 = 0;
        int count1 = 0;
        String srs = "";

        while (scan.hasNext()) { //how do i make this the longest?
            String nsrs = scan.next();
            count0 = nsrs.length();

            if (count0 > count1) { // if the new length is bigger than what was solidified
                count1 = count0; //new solidification of number
                count0 = 0; // count becomes 0  to start again
                srs = nsrs; // nsrs has been solidified as the new biggest String
            }

            else if (count0 <= count1) { // if the new length is smaller than what was solidified
                count0 = 0; //then we start again with dummyCount = 0;
             }   
        }
        return srs;}}

我试图从文本文件中读取,找出最长的字符串并返回该字符串.但是,这个编码忽略了所有while()并且似乎跳转到返回srs.为什么？？

Answer 1

你打电话findBiggest两次Scanner.第一次调用可能找到最大的单词并返回它,但它被忽略了.第二个调用找不到任何单词,while循环没有迭代.

只需拨打findBiggest一次电话

Scanner s = new Scanner(new File("words.txt"));
System.out.println(findBiggest(s));