import java.util.HashMap;

public class HashMapAmazon {
  public static void main(String[] args) {
    int[] ar = { 3, 4, 4, 4, 3, 3, 3, 3, 6, 6, 6, 6, 1, 1, 1, 1, 9 };
    HashMap<Integer, Integer> elementCount = new HashMap<>();
    for (int i : ar) {
      elementCount.put(i, elementCount.getOrDefault(i, 0) + 1);
    }
    for (Integer key : elementCount.keySet()) {
      System.out.println("Element: " + key + " Count: " + elementCount.get(key));
    }
  }
}