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- import java.io.IOException;
- import java.io.RandomAccessFile;
- public class Zadanie1 {
- public static String funkcja(String nazwa) {
- String dom1="";
- int maks =0;
- try(RandomAccessFile raf = new RandomAccessFile(nazwa, "rw")){
- String dom;
- int liczba;
- double cena;
- long wsk;
- while(raf.getFilePointer() < raf.length()) {
- dom = raf.readUTF();
- liczba = raf.readInt();
- wsk = raf.getFilePointer();
- cena = raf.readDouble();
- if(liczba == 0) {
- raf.seek(wsk);
- raf.writeDouble(cena * 1.2);
- }
- if(liczba > maks) {
- maks = liczba;
- dom1 = dom;
- }
- }
- }catch(IOException e) {
- e.getMessage();
- }
- return dom1;
- }
- public static void main(String[] args) {
- }
- }
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