使用Java计算目录中的文件数

import java.io.File;

public class FileCounter {
    public static void main(String[] args) {
        File directory = new File("/path/to/directory");
        int fileCount = countFiles(directory);
        System.out.println("文件数: " + fileCount);
    }

    private static int countFiles(File directory) {
        int fileCount = 0;
        for (File file : directory.listFiles()) {
            if (file.isFile()) {
                fileCount++;
            } else if (file.isDirectory()) {
                fileCount += countFiles(file);
            }
        }
        return fileCount;
    }
}