统计文件中的URL

1、 题目：

一个文本文件中每一行中有一个URL，最多一万行，统计每一个URL的次数，输出到另外一个文件中，每一行前面是URL，后面是个数。

2、代码：

package test;

import java.io.*;
import java.util.HashMap;
import java.util.Map;

public class FileOperate {

    public static void readMethod2() throws IOException {
        String fileName = "d:/test.txt";
        String fileName1 = "d:/test1.txt";
        String line = null;

        BufferedReader in = new BufferedReader(new FileReader(fileName));
        BufferedWriter out = new BufferedWriter(new FileWriter(fileName1));

        Map<String,Integer> map = new HashMap<String,Integer>();
        int count = 0;
      //  line = in.readLine();
        while ((line = in.readLine())!=null) {
          //  System.out.println(line);
            if(!map.containsKey(line)){
                map.put(line,1);
            } else{
                count = map.get(line);
                map.put(line,count+1);
            }
            //System.out.println(count);
            //out.write(line+"\n");
           // line = in.readLine();
        }
        for (Map.Entry entry : map.entrySet()
             ) {
            entry.getKey();
            out.write(entry.getKey()+":"+entry.getValue()+"\n");
        }


        in.close();
        out.close();
    }

    public static void main(String[] args) {

        try {
            readMethod2();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}