有人可以帮我弄清楚我的 WhiteSpaceCounter 代码有什么问题吗？

Question

I need a program that counts the whitespace in a text document, but it keeps giving me an insane number of whitespaces, as I think the while loop just keeps repeating. could anyone read it over and tell me what is up?

import java.io.*;
public class WhiteSpaceCounter {
    public static void main(String[] args) throws IOException {
        File file = new File("excerpt.txt");
        FileInputStream fis = new FileInputStream(file);
        InputStreamReader inreader = new InputStreamReader(fis);
        BufferedReader reader = new BufferedReader(inreader);
        String sentence;
        int countWords = 0, whitespaceCount = 0;
        while((sentence = reader.readLine()) != null) {
            String[] wordlist = sentence.split("\\s+");
            countWords += wordlist.length;
            whitespaceCount += countWords -1;
        }
        System.out.println("The total number of whitespaces in the file is: "
                            + whitespaceCount);
}

}

Answer 1

If you first line has 3 word and your second line has 10 words, then you logic is

countWords (0) += 3 -> 3

countWords(3) += 10 -> 13

So do not use +=

countWords = wordlist.length;

Answer 2

You could also use this

    while((sentence = reader.readLine()) != null) {
        String[] wordlist = sentence.split("\\s+");
        whitespaceCount += wordlist.length-1;
    }