Find the median in a stream of integers (running integers)

StreamMedian.java

import java.io.*;
import java.math.*;
import java.util.*;
import java.lang.*;


public class StreamMedian {

	public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        PriorityQueue<Double> rightMinHeap = new PriorityQueue<>();
        PriorityQueue<Double> leftMaxHeap = new PriorityQueue<>(10, Collections.reverseOrder());

        double currentMedian = scan.nextDouble();
        System.out.println("Current median : " + currentMedian);
        leftMaxHeap.add(currentMedian);

        while (true) {

            double input = scan.nextDouble();

            if (input == -1) {
                break;
            }

            if (input < currentMedian)
                leftMaxHeap.add(input);
            else
                rightMinHeap.add(input);

            while (Math.abs(leftMaxHeap.size() - rightMinHeap.size()) > 1) {

                if (leftMaxHeap.size() > rightMinHeap.size()) {
                    rightMinHeap.add(leftMaxHeap.poll());
                } else {
                    leftMaxHeap.add(rightMinHeap.poll());
                }

            }
            
            if (leftMaxHeap.size() == rightMinHeap.size()) {
                currentMedian = (leftMaxHeap.peek() + rightMinHeap.peek())/2.0;
            } else {
                if (leftMaxHeap.size() > rightMinHeap.size()) {
                    currentMedian = leftMaxHeap.peek();
                } else {
                    currentMedian = rightMinHeap.peek();
                }
            }

            System.out.println("Current median : " + currentMedian);
        }

    }

}