Writing Data to Multiple Files

Question

Hi,
I got a problem while writing the data to multiple files.
Actually my requirement is,
I want to read the data from multiple files and retrieve the required data from those and save that data into separate files.
Meaning if i read the data from "D:\kiran\kk\123\kiran.txt" the retrieved data should be saved in "D:\kiran\kk\kiran.txt" the file name should be created with the input file name.
here is my code,
//here i am taking the files into loop
for(int i=0;i<files.length;i++){
try{                   
//reading the files
BufferedReader br=new BufferedReader(new FileReader(files));
//creating a new file for writing the retrieved data
pw=new PrintWriter("D:\\Kiran\\kk"+File.separator.concat(str[i]));
String line=br.readLine();
while(line!=null){
line=br.readLine();
//here i am matching the required data
Matcher m = Pattern.compile("name(\\s*\\W*\\w*\\W*.\\w*.)|invoice (\\W*(\\d+))|amount(\\W*(\\d+),\\d*)|site(\\s*Rs\\.[\\d]*,[\\d]*/-)", Pattern.CASE_INSENSITIVE).matcher(line);
while(m.find()){                           
System.out.println(m.group());
//here printing the retrieved data to a file
pw.println(m.group());
br.close();
but i am ending up with some issues.
Data is reading properly from all the files, but when i write that data into individual files the data which is retrieved from last file is only printing into the file which is created last.
Please help me regarding this,
Thanks,
Kiran

Answer 1

D:\kiran\kk\123\
In this folder some files are there say,
kk.txt,kiran.txt,praveen.txt and so on, i can read the entire data from those files and also retrieving the required data like name,data etc. from all the files. Now the retrieved data should be stored in individual files means, if the data is retrieved from kk.txt then that particular data should be stored in the file with the same file name but in different location likewise it should happen for all the files those are in that folder.
Thanks,
Kiran