import java.util.Collections;

import java.util.HashMap;

import java.util.Iterator;

import java.util.LinkedHashMap;

import java.util.Map;

import java.util.Set;

public class HashMapExec {

public static void main(String[] args) {

HashMap<Car, Owner> carOwners = new HashMap<Car, Owner>();

for(int i=0; i<100; i++){

carOwners.put(new Car("H-"+i), new Owner());

}

Iterator<Car> carIterator = carOwners.keySet().iterator();

while(carIterator.hasNext()){

Car c = carIterator.next();

System.out.println(c+" Owner:"+carOwners.get(c));

}

//EntrySet

System.out.println("=========");

System.out.println("Map Entry");

System.out.println("=========");

Set<Map.Entry<Car, Owner>> mapEntries = carOwners.entrySet();

Iterator<Map.Entry<Car, Owner>> mapEntryItr = mapEntries.iterator();

while(mapEntryItr.hasNext()){

Map.Entry<Car, Owner> carEntry = mapEntryItr.next();

System.out.println("Key:"+carEntry.getKey()+" Value:"+carEntry.getValue());

}

}

}