Median In Incoming stream of Numbers

package testrun;

import java.util.Comparator;
import java.util.PriorityQueue;

public class MedianInStream {

    double                 median  = 0;
    // create a max heap
    PriorityQueue<Integer> maxHeap = new PriorityQueue<Integer>(new Comparator<Integer>() {
                                       @Override
                                       public int compare(Integer o1, Integer o2) {
                                           return (int) (o1 - o2);
                                       }
                                   });
    // create a min heap
    PriorityQueue<Integer> minHeap = new PriorityQueue<Integer>(new Comparator<Integer>() {
                                       @Override
                                       public int compare(Integer o1, Integer o2) {
                                           return (int) (o2 - o1);
                                       }
                                   });

    public void insert(int number) {
        // Write your code here.
        if (minHeap.size() == 0 || minHeap.peek() > number) {
            minHeap.add(number);
        } else {
            maxHeap.add(number);
        }
        // rebalance heaps
        if (minHeap.size() - maxHeap.size() == 2) {
            maxHeap.add(minHeap.remove());
        } else if (maxHeap.size() - minHeap.size() == 2) {
            minHeap.add(maxHeap.remove());
        }
        // update median
        if (minHeap.size() == maxHeap.size()) {
            median = ((double) minHeap.peek() + (double) maxHeap.peek()) / 2;
        } else if (minHeap.size() > maxHeap.size()) {
            median = minHeap.peek();
        } else {
            median = maxHeap.peek();
        }

    }

    public double getMedian() {
        return median;
    }

    public static void main(String[] args) {
        MedianInStream ms = new MedianInStream();
        ms.insert(5);
        System.out.print("Median: " + ms.getMedian());
        ms.insert(10);
        System.out.print("Median: " + ms.getMedian());
        ms.insert(100);


    }
}