package chapter11;
import java.util.*;
public class Statistic {
	public static void main(String args[]){
		Random rand=new Random(47);
		Map<Integer,Integer> m=new HashMap<Integer,Integer>();
		for(int i=0;i<1000;i++){
			Integer r=rand.nextInt(10);
			Integer freq=m.get(r);
			m.put(r, freq==null? 1:freq+1);
		}
		System.out.print(m);
		
	}

}