OS_Lab01_zad02_a

package zad2;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.FileNotFoundException;
import java.util.ArrayList;

public class Lab01_zad02 {
    public static void main(String[] args) throws IOException {

        File source = null;
        File destination = null;
        source = new File("izvor.txt");
        destination = new File("destinacija.txt");
        FileInputStream fis = new FileInputStream(source);
        FileOutputStream fos = new FileOutputStream(destination);
        InputStreamReader in = new InputStreamReader(fis);
        OutputStreamWriter out = new OutputStreamWriter(fos);

        try {
            char[] array = new char[100];
            in.read(array);
            StringBuilder sb = new StringBuilder();
            for (int i = array.length - 1; i >= 0; i--) {
                sb.append(array[i]);
            }
            String content = sb.toString();
            out.write(content);
        } finally {
            in.close();
            out.close();
        }
    }
}