/* * To change this template, choose Tools | Templates * and open the template in the editor. */package mypack;import java.io.BufferedReader;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.FileReader;import java.io.IOException;import java.io.PrintWriter;/** * * @author Administrator */public class Counter extends Object { private String currentRecord=null; private BufferedReader file; private String path; public Counter() { } public String ReadFile(String filePath)throws FileNotFoundException {     path=filePath;     file=new BufferedReader(new FileReader(path));     String returnStr=null;     try     {       currentRecord=file.readLine();            }     catch(IOException e)     {     System.out.println("讀取數據錯誤");     }     if(currentRecord==null)         returnStr="沒有任何記錄";     else     {     returnStr=currentRecord;     }     return returnStr; } public void WriteFile(String filePath,String counter)throws FileNotFoundException {  path=filePath;  int Writestr=Integer.parseInt(counter)+1;  try  {   PrintWriter pw=new PrintWriter(new FileOutputStream(filePath));   pw.println(Writestr);   pw.close();  }  catch(IOException e)  {   System.out.println("寫入文件錯誤"+e.getMessage());  }    }        }