Main-Packets

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Queue;
import java.util.Scanner;
import java.util.Stack;

public class Program {

    static void bubbleSort(ArrayList<Packet> al) {
            int n = al.size();
            for (int i = 0; i < n-1; i++) {
                for (int j = 0; j < n-i-1; j++) {
                    if (al.get(j).getNumber() > al.get(j + 1).getNumber()){
                        // swap arr[j+1] and arr[j]
                        Packet temp = al.get(j);
                        al.set(j, al.get(j + 1));
                        al.set(j + 1, temp);
                    }
                }
            }
    }
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        ArrayList<Packet> packets = new ArrayList<Packet>();

        System.out.print("Enter packets count: ");
        int n = Integer.parseInt(scan.nextLine());

        for (int i = 0; i < n; i++) {
            // read info, create object, add packets
            System.out.print("Read message: ");
            String msg = scan.nextLine();
            System.out.print("Read packet number: ");
            int num = Integer.parseInt(scan.nextLine());
            System.out.print("Read packet lose: ");
            double lose = Double.parseDouble(scan.nextLine());

            packets.add(new Packet(msg, num, lose));
        }

        bubbleSort(packets);
        /*for (int i = 0; i < packets.size(); i++) {
            System.out.print(packets.get(i));
        }*/

        System.out.println("Message: ");
        for (Packet p : packets) {
            if (p.getLosses() >= 0.5) {
                System.out.print(p);
            }
        }

    }

}