Carriage return in java

                String text = "";
		try
                {
		    BufferedReader in = new BufferedReader(new FileReader(path));
		    String line; //a line in the file
		    while ((line = in.readLine()) != null)
		    {
		    	text = text + line;
		    }
		    in.close();
		} catch (Exception e)
		{
		    e.printStackTrace();
		}
		StringBuffer buff = new StringBuffer(text);
		
                //perform required changes

		try
		{
			PrintWriter out = new PrintWriter(path);
			out.write(buff.toString());
			out.close();
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}