GradskiParkovi

package park.grad;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.nio.Buffer;
import java.util.ArrayList;
import java.util.GregorianCalendar;
import java.util.List;

import park.Park;
import park.SpravaZaZabavu;
import park.TipSpraveZaZabavu;

public class GradskiParkovi {
    private List<Park> parkovi = new ArrayList<>();

    public void unesi(Park park) {
        if(park == null || parkovi.contains(park))
            return;
        parkovi.add(park);
    }

    public void pretrazi(int uzrast) {
        try (PrintWriter in = new PrintWriter(
                            new BufferedWriter(
                                    new FileWriter("parkovi.txt")))) {
            int brojac=0;

            for(int i=0;i<parkovi.size();i++) {
                if(parkovi.get(i).getSprave()==null) {
                    in.close();
                    return;
                }
                for(int j=0;j<parkovi.get(i).getSprave().length;j++) {
                    if(parkovi.get(i).getSprave()[j].getUzrast()>=uzrast) {
                        brojac++;
                    }
                }
                if(brojac>0) {
                    in.println(parkovi.get(i).getAdresa());
                }
            }
            in.close();

        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public void pronadjiPa(int uzrast) {
        try (PrintWriter in = new PrintWriter(
                                new BufferedWriter(
                                    new FileWriter("rekoviranje.txt")))) {
            int brojac = 0;
            int n = 0;

            for(int i=0;i<parkovi.size();i++) {
                if(parkovi.get(i).getSprave()==null) {
                    in.close();
                    return;
                }

                n = parkovi.get(i).getSprave().length;
                int br2 = 0;
                String stariParkovi = "";
                String adreseStarihParkova = "";

                for(int j=0;j<parkovi.get(i).getSprave().length;j++) {
                    GregorianCalendar datum = parkovi.get(i).getSprave()[j].getDatumPostavljanja();
                    GregorianCalendar trenutni = new GregorianCalendar();
                    int godina = datum.get(GregorianCalendar.YEAR);
                    int trenutnaGodina = trenutni.get(GregorianCalendar.YEAR);

                    if(godina + 3 <= trenutnaGodina) {
                        stariParkovi=stariParkovi+parkovi.get(i).toString()+"\n";
                        brojac++;
                    }
                    adreseStarihParkova=adreseStarihParkova + parkovi.get(i).getAdresa() + "\n";
                    br2++;
                }
                if(brojac > n/2) {
                    in.println(adreseStarihParkova);
                    in.println(stariParkovi);
                }
            }

            in.close();

        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public static String unos() throws IOException {
        BufferedReader out = new BufferedReader(new InputStreamReader(System.in));
        String uneto = out.readLine();
        return uneto;
    }

}