package com.company;

import java.util.HashMap;
import java.util.Map;
import java.util.Random;

public class Main {

    public static void main(String[] args) {
        Map<String, Integer> listOfProducts = new HashMap<>();
        listOfProducts.put("Apple", 10);
        listOfProducts.put("Banana", 25);
        listOfProducts.put("Kiwi", 40);
        listOfProducts.put("Orange", 20);

        Map.Entry<String, Integer>[] input = listOfProducts.entrySet().toArray(new Map.Entry[0]);
        Random random = new Random();


        new Thread(new Runnable() {
            @Override
            public void run() {
                Map.Entry<String, Integer> key = input[random.nextInt(input.length)];
                System.out.println("Provider: " + key);
            }
        }).start();


        new Thread(new Runnable() {
            @Override
            public void run() {
                Map.Entry<String, Integer> key = input[random.nextInt(input.length)];
                System.out.println("Buyer: " + key);
            }
        }).start();
    }
}