Use PriorityQueue for Maxheap

Use PriorityQueue for Maxheap

  May 25, 2017    

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PriorityQueue<Integer> maxHeap=new PriorityQueue<Integer>(
            new Comparator<Integer> () {
                public int compare(Integer a, Integer b) {
                return b - a;
            }
        });

Or

private static PriorityQueue<Integer> maxHeap = new PriorityQueue<>(Collections.reverseOrder());

Here we are comparing two integers using comparator to change the storing mechanism