统计java代码行数的代码（除注释，空行）

来源：互联网发布：racemenu御姐捏脸数据编辑：程序博客网时间：2024/05/22 03:04

package com.hyx;

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

public class CodeStatistics {
    public static void codeStatistics(String fileName) throws Exception {
        String strPath = "D://temp";
        FileReader fr = new FileReader(strPath + "//" + fileName);

BufferedReader br = new BufferedReader(fr);

String myString = null;
String resultString = new String();

int i = 0;

        while ((myString = br.readLine()) != null) {
            i++;
            resultString = resultString + myString + "/r/n";
            for (int index = 0; index < myString.length(); index++) {
                char cha = myString.charAt(index);
                if (cha == '*') {
                    i--;
                    break;
                }
            }
            if (myString.indexOf("//") != -1) {
                i--;
            }
            if ("".equals(myString)) {
                i--;
            }
        }
        System.out.println(resultString);
        System.out.println("value lineCount" + i);
        br.close();
        fr.close();
    }

    public static void fileRead(String fileName) {
        byte[] buff = new byte[1024];
        boolean cont = true;
        FileInputStream infile = null;
        String strPath = "D://temp";
        try {
            infile = new FileInputStream(strPath + "//" + fileName);
        } catch (FileNotFoundException e) {
            System.err.println("not find file");
            System.exit(1);
        }

        while (cont) {
            try {
                int n = infile.read(buff);
                System.out.write(buff, 0, n);
            } catch (Exception e) {
                cont = false;
            }
        }

        try {
            infile.close();
        } catch (IOException e) {
            System.err.println("file erro");
            System.exit(1);
        }

    }

    public static void main(String[] args) {
        try {
            codeStatistics("OOXX.java");
        } catch (Exception e) {
            e.printStackTrace();
        }
        // fileRead("OOXX.java");
    }
}