Reading the all files inside the folder and writing the data into file

Reading the all files inside the folder and writing the data that we need.


My file name: GOPS_Read_10042017.txt

GOPS_Read_10042017.txt contains the data below:
000000000HDRGAPS2017-04-2621.20.55000000296
TFIC260420175                           2017-04-26Test INDIA PRIVATE LIMITED      
TFIC9PUPP02178                         2017-04-26Test INDIA PRIVATE LIMITED      
IFIC267332                             2017-03-15GLOBAL BUSINESS SOLUTIONS I
L267332111
999999999TRLGAPS2017-04-2621.20.55000000296000029563



import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.FilenameFilter;
import java.io.IOException;

public class InvoiceFinder {

/**
* @param args
*/

private static File[] getFileList(String dirPath) {
        File dir = new File(dirPath);  

        File[] fileList = dir.listFiles(new FilenameFilter() {
            public boolean accept(File dir, String name) {
                return name.startsWith("GOPS") &&name.endsWith(".txt");
            }
        });
        return fileList;
    }
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
try {

File[] matchingFiles = getFileList("C:\\files");
System.out.println(matchingFiles.length);
for (int i=0;i<matchingFiles.length;i++){

BufferedReader br = new BufferedReader(new FileReader(matchingFiles[i]));
BufferedWriter bw=new BufferedWriter(new      FileWriter("C:\\files\\output"+matchingFiles[i].getName().substring(14)+".txt"));
String sCurrentLine;
br.readLine();
while((sCurrentLine=br.readLine())!=null){

if ( !sCurrentLine.startsWith("L")&&(!sCurrentLine.startsWith("000000000")&&!sCurrentLine.startsWith("999999999"))){
bw.write("'"+sCurrentLine.substring(4, 28).trim()+"',");
bw.newLine();

}

}
br.close();
bw.close();
}



} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}


}

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