在Java中，如何只读取文件中每行的第一个单词？

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class ReadFirstWordOfFile {
    public static void main(String[] args) {
        String filePath = "path/to/your/file.txt";
        BufferedReader reader = null;

        try {
            reader = new BufferedReader(new FileReader(filePath));
            String line;

            while ((line = reader.readLine()) != null) {
                String[] words = line.split(" ");
                String firstWord = words[0];
                System.out.println(firstWord);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (reader != null) {
                    reader.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}