how to find max element in a map code example

Example: find max value in map

public class NewClass4 {
  public static void main(String[] args)
  {
    HashMap<Integer,Integer>map=new HashMap<Integer, Integer>();
    map.put(1, 50);
    map.put(2, 60);
    map.put(3, 30);
    map.put(4, 60);
    map.put(5, 60);
    int maxValueInMap=(Collections.max(map.values()));  // This will return max value in the Hashmap
    for (Entry<Integer, Integer> entry : map.entrySet()) {  // Itrate through hashmap
      if (entry.getValue()==maxValueInMap) {
        System.out.println(entry.getKey());     // Print the key with max value
      }
    }

  }
}