OS Lab 1.3

import java.io.*;

public class HW01_3 {
    public static void main(String[] args) throws IOException {
        BufferedReader br=new BufferedReader(new FileReader("izvor.txt"));
        StringBuilder st=new StringBuilder();
        String line=br.readLine();
        while(line!=null){
            String [] niza=line.split(" ");
          for(String b: niza){
              st.append(b +" ");
          }
          line=br.readLine();


        }
        st.reverse();
        PrintWriter pv=new PrintWriter(new FileOutputStream("destinacija.txt"));
        pv.println(st.toString());
        pv.flush();
        pv.close();

    }
}