package javasumer2019;

import java.util.HashMap;
import java.util.Random;
import java.util.Set;

public class Homework20 {

	public static void main(String[] args) {

		HashMap<Integer,Integer> map = new HashMap<Integer,Integer>();
		String [] name = {"Josh","June","Ray","Chen","Jacky"};


		Random rand = new Random();
		for(int i = 0 ;i < 500;i++){
			int index = rand.nextInt(name.length);


		boolean isContanKey =map.containsKey(index);

		if(isContanKey==false) {
			map.put(index, 1);
			}

		if(isContanKey) {
			Integer name1 = map.get(index);
			name1 = name1+1;
			map.put(index, name1);
			}

		}
			Set<Integer>keySet = map.keySet();
			for (Integer Key:keySet) {
				Integer Value = map.get(Key);
				System.out.println("name:"+name[Key]+",+Value:"+Value);
			}


			}
	}