Generate Random Numbers

//Generate Random Numbers - Save this programe as "testrandom.java"
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Random;

public class testrandom {
public static void main(String args[])
{
HashMap hm = new HashMap();
ArrayList al= new ArrayList();
int arr[]=new int[10];
for(int i= 0 ; i< arr.length;i++)
{
arr[i]=i;
hm.put(new Random().nextInt(), i);
}
Collection coll = hm.values();
Iterator it= coll.iterator();
while(it.hasNext())
{
System.out.println("Random Values - >"+it.next());
}
}
}