java - 这怎么能写呢？我需要有关下一个 Word 方法的帮助

Question

这个怎么写？我特别需要有关 nextWord 方法的帮助

package code;

import java.util.HashMap;

public class WordCounter {

    /**
     * Reads a file (identified by inputFilePath), one character at a time, and tracks
     * word counts using a java.util.HashMap<String,Integer>. 
     * 
     * A word is defined as a contiguous sequence of characters that does not contain
     * word separator characters, where word separator characters are: ' ', '\t', '\n',
     * ',' and '.'
     *   
     * You may use only CharacterFromFileReader to read characters from the input file. 
     * 
     * In order to keep your code readable, break your code into several methods.  Only 
     * the wordCounts method may be public; define meaningful private helper methods that 
     * you call from the wordCounts method.
     * @returns a HashMap containing the word->count mappings
     */

    public HashMap<String,Integer> wordCounts(String inputPath) {

        return new HashMap<String, Integer>();
    }

    private String nextWord(CharacterFromFileReader iterator) {

        while(iterator.hasNext()){ 
//make loop that takes each word an saves it to a string until u hit a space break 

        String s = "";

        if(iterator.hasNext()){

    }   
        }
    return null;
    }
        } 

Answer 1

这个怎么样？

String words[] = str.split("[ ,\\t\\n,\\.]");

要生成 str，您可以对 iterator 循环中的 StringBuilder 使用 append 操作。