new PrintWriter(Writer out)
import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Collections; import java.util.Iterator; public class Main { public static void main(String[] args) { try { BufferedReader input = new BufferedReader(new FileReader(args[0])); ArrayList list = new ArrayList(); String line; while ((line = input.readLine()) != null) { list.add(line); } input.close(); Collections.reverse(list); PrintWriter output = new PrintWriter(new BufferedWriter(new FileWriter(args[1]))); for (Iterator i = list.iterator(); i.hasNext();) { output.println((String) i.next()); } output.close(); } catch (IOException e) { System.err.println(e); } } }