import java.io.*;

 public class Text {

     private String strFinal = "";

     public void open(String fileName) {

         try {

             BufferedReader in = new BufferedReader(new FileReader(fileName));

             String s = null;

             while ((s = in.readLine()) != null) {

                 strFinal = strFinal + s + "\n";

             }

             in.close();

         } catch (IOException e) {

             System.out.println(e);

         }

     }

     public void save(String fileName){

         try{

             BufferedReader in = new BufferedReader(new StringReader(strFinal));

             PrintWriter out = new PrintWriter(new FileWriter(fileName));

             int lineCount = ;

             String s = null;

             while((s = in.readLine())!=null){

                 out.println(lineCount+++": "+s);

             }

             in.close();

             out.close();

         }catch(IOException e){

             System.out.print(e);

         }

     }

     public static void main(String args[])throws IOException{

         Text obj = new Text();

         obj.open("D:/Java_workspace/Text/src/Text.java");

         obj.save("E:\\Example\\A.txt");

     }

 }