HW01_3

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


public class HW01_3 {
    public static void main(String[] args) throws IOException {

        BufferedReader input = null;
        BufferedWriter output = null;

        try {
            input = new BufferedReader(new FileReader("izvor.txt"));
            output = new BufferedWriter(new FileWriter("destinacija.txt"));

            int key;
            StringBuilder sb = new StringBuilder();

            while ((key = input.read()) != -1) {
                sb.append((char) key);
            }

            for (byte b : sb.reverse().toString().getBytes()) {
                output.write(b);
            }
        } catch (FileNotFoundException e) {

        } finally {
            try {
                input.close();
                output.close();
            } catch (IOException e) {

            }
        }
    }
}