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();
         }
     }
 }