Unnamed

package ik.ku.lt.inf041.kestutis.armalis;import java.io.*; import java.text.*; import java.util.*;  public class L2B22 {  //private static final DateFormat FRMT_DATE = new SimpleDateFormat("yyyy.MM.dd yyyy.MM.dd"); //private static final NumberFormat FRMT_NUM = new (); private static class PrekesIrasas {    PrekesIrasas fKitas = null;     String fPreke;   int fGautKiek;   int fPardKiek;   //Date fPardDate;   String fPardDate;  }   private static class PrekesKaina {    PrekesKaina fKaire = null;   PrekesKaina fDesine = null;     String fPreke;   double fPardKain;  }   private static class PrekesLikutis {    PrekesLikutis fKaire = null;   PrekesLikutis fDesine = null;     String fPreke;   int fLikutis;   double fPardKain;   double fPajamos;   }   private PrekesKaina fPrekesKainaRoot; private PrekesLikutis fPrekesLikutisRoot;   public static void main(String[] args) throws IOException, ParseException  {   // Pirmo failo nuskaitymas  PrekesIrasas pradzia = null;   PrekesIrasas galas = null;    BufferedReader buf = new BufferedReader (new FileReader("PIrasas.csv"));   String line = buf.readLine ();   while ((line = buf.readLine()) != null){    String[] c = line.split(";");    PrekesIrasas pi = new PrekesIrasas();    pi.fPreke=c[0];    pi.fGautKiek= Integer.parseInt(c[1]);    pi.fPardKiek= Integer.parseInt(c[2]);    //pi.fPardDate = FRMT_DATE.parse(c[3]);   pi.fPardDate=c[3];   if (pradzia == null){ 	   	   pradzia = pi; 	   galas = pi;      }    else {    	   galas.fKitas = pi; 	   galas = pi;     }    }   buf.close();  // Pirmo failo duomenu isvedimas   PrekesIrasas r = pradzia;   System.out.println("Failas PIrasas.csv");  System.out.println("Prekes"+'\t'+"Gauta"+'\t'+"Parduota"+'\t'+"Pardavimo data");   while (r != null){    System.out.println(r.fPreke+'\t'+r.fGautKiek+'\t'+r.fPardKiek+'\t'+r.fPardDate);    r = r.fKitas;   }    // Antro failo nuskaitymas ir isvedimas i ekrana  System.out.println ("");  System.out.println("Irasas PKaina.csv");  System.out.println("");  System.out.println("Preke:"+'\t'+'\t'+"Prekes Kaina:");  PrekesKaina root = null;    BufferedReader bf = new BufferedReader(new FileReader("PKaina.csv"));  String line1 = bf.readLine();  while ((line1 = bf.readLine()) != null ){   String cells[] = line1.split(";");   PrekesKaina pk = new PrekesKaina();   pk.fPreke = cells[0];   pk.fPardKain = Double.parseDouble(cells[1]);    System.out.println(pk.fPreke+'\t'+'\t'+pk.fPardKain+" Lt");         if (root != null) {     PrekesKaina k = root;       while (true){     int c = pk.fPreke.compareTo(k.fPreke);     if (c>0){      if (k.fDesine != null){       k = k.fDesine;             } else {        k.fDesine = pk;              break;      }     } else      if (c<0){       if (k.fKaire != null){        k = k.fKaire;               } else {        k.fKaire = pk;                break;       }      } else {       throw new RuntimeException ("Yra pasikartojanciu irasu Prekiu kainorastyje");      }    }   } else {    root = pk;       }        } bf.close();  //  /* PrekesLikutis fKaire = null;   PrekesLikutis fDesine = null;     String fPreke;   int fLikutis;   double fPardKain;   double fPajamos; */     // Galutiniu duomenu isvedimas i e   //Prekiu surasymas i Prekes likucio medi    PrintWriter wr = new PrintWriter(new FileWriter("PLikutis.csv"));  PrekesIrasas sk1 = pradzia;  PrekesKaina sk2 = root;  PrekesLikutis root1 = null;  while (sk1 != null){							// Cia "kursorius" atsistoja ties pirmo failo pirmu steku	  PrekesLikutis pl = new PrekesLikutis();   	  	  	  	  	  	  	  	  	  sk1 = sk1.fKitas;  }         } }