统计 某目录下 文件中的 字符

统计给定目录下，所有文件中的 行数、空格数、数字个数：

 

package test;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;

public class FileStatic {
	public static void main(String[] args) {
		String path = "E:/file/myfile/msn/";
		folderStatic(path);
	}

	/**
	 * 统计 某个目录下 每个文件的 行数、空格数、数字 个数，
	 * @param folderPath
	 */
	public static void folderStatic(String folderPath) {
		try {
			File folder = new File(folderPath);
			System.out.println("folder [" + folderPath + "] exists? " + folder.exists());
			File[] fList = folder.listFiles();
			System.out.println("contains " + fList.length + " files");

			for (int i = 0; i < fList.length; i++) {
				int lineCount = 0, spaceCount = 0, numberCount = 0;
				File _file = fList[i];
				BufferedReader br = new BufferedReader(new FileReader(_file), 300);
				String line = null;
				while ((line = br.readLine()) != null) {
					lineCount++;
					for (int j = 0; j < line.length(); j++) {
						char _c = line.charAt(j);
						if (_c == ' ') { // 判断空格
							spaceCount++;
						} else if (_c > '0' && _c < '9') { // 判断 数字
							numberCount++;
						}
					}
				}
				System.out.println("[" + _file.getName() + "]:\tline:" + lineCount + "\twhitespace:" + spaceCount + "\tnumber:" + numberCount);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}