Практика5.4

package com.company;

import java.util.HashSet;
import java.util.Iterator;

public class Main {


    public static class HeavyBox {
        public int weight;

        public HeavyBox(int weight) {
            this.weight = weight;
        }

        public HeavyBox() {
        }

        public boolean Weight() {
            if (weight > 300) {return true;}
            else return false;
        }

        public void Print() {
            System.out.println(weight);
        }
    }

        public static void Task() {
            HashSet<HeavyBox> LessThan300 = new HashSet<>();
            LessThan300.add(new HeavyBox(789));
            LessThan300.add(new HeavyBox(237));
            LessThan300.add(new HeavyBox(340));
            LessThan300.add(new HeavyBox(300));
            LessThan300.add(new HeavyBox(34));
            HashSet<HeavyBox> MoreThan300 = new HashSet<>();
            Iterator<HeavyBox> Scaler = LessThan300.iterator();
            HeavyBox Box = new HeavyBox();

            while (Scaler.hasNext()) {
                Box = Scaler.next();
                if (Box.Weight())
                {
                    MoreThan300.add(Box);
                    Scaler.remove();
                }
            }

            System.out.println("Вес <=300: ");
            for (HeavyBox Box1 : LessThan300) {
                Box1.Print();
            }

            System.out.println("Вес >300: ");
            for (HeavyBox Box1 : MoreThan300) {
                Box1.Print();
            }
        }

    public static void main(String[] args) {
        Task();
    }
}