main

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 */
package main;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

/**
 *
 * @author 37060
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws FileNotFoundException {
        // TODO code application logic here
        ArrayList<Paskaita> pas = new ArrayList();
        nuskaitytiduom("src/data.txt",pas);
         Collections.sort(pas);
         irasytiifaila(pas);
         System.out.println(pas);

    }
    public static void irasytiifaila(ArrayList<Paskaita> as)
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("iveskite semestra");
        int semes=sc.nextInt();
        sc.nextLine();
        System.out.println("Iveskite failo pavadinima");
        String pav=sc.nextLine();
        FileWriter fos=null;
               try {
            fos = new FileWriter(pav);
            for (Paskaita a : as) {
                if (a.semestras == semes)
                   {

                    fos.write(a.toString() + "\n");
                }
            }
        } catch (Exception e) {
            System.out.println("Klaida");
        } finally {
            try {
                fos.close();
            } catch (Exception e) {
            }
        }
    }

    public static void nuskaitytiduom(String pav,ArrayList<Paskaita> as) {
        Scanner s = null;

        try{
        s = new Scanner(new File(pav));
        String code = null;
        while(s.hasNextLine()){
           code = s.next();
            String pavad =s.next();
            String toliau=s.next();
            int skaicius = 0;
            while(true){
                try{
                    skaicius= Integer.parseInt(toliau.trim());
                    toliau=s.next();
                    break;
                }catch(Exception r){
                    pavad=pavad+" "+toliau;
                    toliau=s.next();

                }
            }
            int kred=skaicius;
          //  toliau=s.next();
            int semes=Integer.parseInt(toliau.trim());
           String destytojas = s.next();
           toliau=s.next();
           destytojas= destytojas+" "+toliau;
           Paskaita paskt = new Paskaita(code,pavad,kred,semes,destytojas);
          as.add(paskt);

        }
        } catch(Exception e){
            e.printStackTrace();
        }finally {
            if (s != null) {
                s.close();
            }
        }
    }
}