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Java實現(xiàn)統(tǒng)計文件夾下所有文件的字?jǐn)?shù)

更新時間：2024年03月25日 09:33:22 作者：林小果呀

這篇文章主要為大家詳細(xì)介紹了如何使用Java實現(xiàn)統(tǒng)計文件夾下所有文件的字?jǐn)?shù),文中的示例代碼講解詳細(xì),感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下

統(tǒng)計文件夾下所有.md文件的字?jǐn)?shù)

示例代碼

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);
    }
}

方法補充

除了上文的方法，小編還為大家整理了其他實現(xiàn)統(tǒng)計文件字?jǐn)?shù)的方法，希望對大家有所幫助

Java統(tǒng)計文檔的字?jǐn)?shù)

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class WordCount {
    public static void main(String[] args) {
        // 讀取文檔路徑
        String filePath = "path/to/your/document.txt";
        
        try {
            // 創(chuàng)建文件對象
            File file = new File(filePath);
            
            // 創(chuàng)建Scanner對象，用于讀取文件內(nèi)容
            Scanner scanner = new Scanner(file);
            
            // 統(tǒng)計字符個數(shù)的變量
            int count = 0;
            
            // 逐行讀取文件內(nèi)容，并統(tǒng)計字符個數(shù)
            while (scanner.hasNextLine()) {
                String line = scanner.nextLine();
                count += line.replaceAll("\\s+", "").length();
            }
            
            // 輸出統(tǒng)計結(jié)果
            System.out.println("文檔的字?jǐn)?shù)是：" + count);
            
            // 關(guān)閉Scanner對象
            scanner.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }
}

Java獲取文件字?jǐn)?shù)

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

public class WordCount {
    public static void main(String[] args) {
        String filename = "example.txt"; // 替換為要統(tǒng)計字?jǐn)?shù)的文件路徑

        int wordCount = 0;
        int spaceCount = 0;
        int punctuationCount = 0;

        try (BufferedReader reader = new BufferedReader(new FileReader(filename))) {
            String line;
            while ((line = reader.readLine()) != null) {
                String[] words = line.split("\\s+");
                wordCount += words.length;
                spaceCount += words.length - 1;
                
                for (char c : line.toCharArray()) {
                    if (Character.isWhitespace(c)) {
                        spaceCount++;
                    } else if (Character.isLetterOrDigit(c) || Character.isSpaceChar(c)) {
                        // do nothing
                    } else {
                        punctuationCount++;
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        System.out.println("字?jǐn)?shù): " + wordCount);
        System.out.println("空格數(shù): " + spaceCount);
        System.out.println("標(biāo)點符號數(shù): " + punctuationCount);
    }
}

用python統(tǒng)計一個文件夾下的所有文件的中文字?jǐn)?shù)

import os

DirPath = 'D:/下載/docs'
resultArray = []
listCount = 0
content = ''
resultCount = 0


def check_contain_chinese(check_str, fileName):
    countResult = 0
    for ch in check_str:
        if u'\u4e00' <= ch <= u'\u9fff':
            countResult += 1
    resultArray.append(countResult)
    print(str(fileName) + "文件的中文字?jǐn)?shù)是：" + str(countResult) + '\n')


if __name__ == "__main__":
    for item in os.listdir(DirPath):
        print(DirPath + '/' + item)
        listCount += 1
        f = open(DirPath + '/' + item, 'r', encoding='utf-8')
        content = f.read()
        check_contain_chinese(content, item)

    for num in resultArray:
        resultCount += num
    print("累計文件個數(shù)：" + str(listCount) + "個")
    print("累計中文字符：" + str(resultCount) + "個")

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