统计文件夹下所有文件的字数

统计文件夹下所有.md文件的字数

import java.io.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.regex.Pattern;

public class WordCounter {
    private static final Pattern WORD_PATTERN = Pattern.compile("[a-zA-Z]+|[\u4e00-\u9fa5]");
    private static long totalWords = 0;

    public static void main(String[] args) throws IOException {
        Path startPath = Paths.get("path/to/your/directory"); // replace with your directory
        Files.walkFileTree(startPath, new SimpleFileVisitor<Path>() {

            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                if (file.toString().endsWith(".md")) {
                    totalWords += countWords(file);
                }
                return FileVisitResult.CONTINUE;
            }

            private long countWords(Path file) throws IOException {
                long count = 0;
                try (BufferedReader reader = Files.newBufferedReader(file, StandardCharsets.UTF_8)) {
                    String line;
                    while ((line = reader.readLine()) != null) {
                        count += WORD_PATTERN.split(line).length;
                    }
                }
                return count;
            }

            @Override
            public FileVisitResult postVisitDirectory(Path dir, IOException exc) {
                System.out.println("Visited directory: " + dir + ", total words: " + totalWords);
                return FileVisitResult.CONTINUE;
            }
        });
        System.out.println("Total words in all .md files: " + totalWords);
    }
}