Java 2 lab

//Lab2.java
package lab2;

import ds.KomandoSistema;


public class Lab2 {


    public static void main(String[] args) {
        KomandoSistema abs = new KomandoSistema();
        abs.pridetiZaideja(13,"James","Harden");
        abs.pridetiZaideja(15,"Clint","Capela");
        abs.pridetiZaideja(3,"Chris","Paul");
        int nr = 1;
          for(Object o:abs.getZaidejai()){
           System.out.println(nr++ +"."+ o);
       }
       abs.salintiZaideja(15);
    }

}
..............................................
//Zaidejas.java
package ds;


public class Zaidejas implements Comparable <Zaidejas>{
    private int kodas;
    private String vardas,pavarde;

    @Override
    public String toString() {
        return vardas + " " + pavarde + " ("+kodas+")";
    }

    public Zaidejas(int kodas, String vardas, String pavarde) {
        this.kodas = kodas;
        this.vardas = vardas;
        this.pavarde = pavarde;
    }

    Zaidejas() {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    public int getKodas() {
        return kodas;
    }

    public String getVardas() {
        return vardas;
    }

    public void setVardas(String vardas) {
        this.vardas = vardas;
    }

    public String getPavarde() {
        return pavarde;
    }

    public void setPavarde(String pavarde) {
        this.pavarde = pavarde;
    }

    @Override
    public int compareTo(Zaidejas o) {

         int rez = (vardas + " " + pavarde).compareTo(o.vardas+ " " + o.pavarde );
         if(rez == 0){
             return Integer.compare(kodas,o.kodas);
         }

         return rez;
    }
}
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//KomandosSistema
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package ds;

import java.util.ArrayList;
import java.util.Collections;

/**
 *
 * @author julekas
 */
public class KomandoSistema {
    private ArrayList<Zaidejas> Zaidejai = new ArrayList();
    public void pridetiZaideja(int kodas,String vardas,String pavarde){

        Zaidejas naujas = new Zaidejas(kodas,vardas,pavarde);
       Zaidejai.add(naujas);
       Collections.sort(Zaidejai);



    }

    public ArrayList<Zaidejas> getZaidejai() {
        return Zaidejai;
    }






    public Zaidejas gautiZaidejaPagalId(int id) {
         for(Zaidejas d:Zaidejai){
         if(d.getKodas()==id){
             return d;
        }

    }
        return null;
    }

  public void salintiZaideja(int id){

        Zaidejai.remove(gautiZaidejaPagalId(id));
}

    ........................................................................