package datastructure.hashmap;

import java.util.*;

public class HashMapTest {

public static void main(String[] args) {

HashMap<Integer, String> hm = new HashMap<Integer, String>();

hm.put(3, "pen");

hm.put(1, "watch");

hm.put(5, "paper");

hm.put(4, "monitor");

hm.put(2, "keyboard");

// Find all the values

Collection<String> productVal = hm.values();

Iterator<String> it = productVal.iterator();

while (it.hasNext()) {

System.out.println(it.next());

}

List<Integer> list = new ArrayList<Integer>(hm.keySet());

Collections.sort(list);

LinkedHashMap<Integer, String> linkeHashMap = new LinkedHashMap<Integer, String>();

for (Integer i : list) {

linkeHashMap.put(i, hm.get(i));

}

System.out.println(linkeHashMap);

System.out.println(linkeHashMap.containsValue("pen"));

} // end of main

} // end of HashMap