Im having trouble understanding the method heapify and exactly what its doing in this code. Please explain and including pictures would help alot. Thank you

public class HeapPriorityQueueK extends ComparableK>> Implements PriorityQueue I private K datall private int size; private int capacity; / constructors public HeapPriorityQueue) capacity 100; size- 0 data- (??) new Comparable[capacity]; public HeapPriorityQueue(int c) capacity ci size- 0 data- (??) new Comparable[capacity]