Java - Programa de Colas Multinivel con Retroalimentacion

public class Cola {

	/* */

	public static void main(String args[]) throws InterruptedException {

		PriorityQueue<Proceso> cola = new PriorityQueue<>();

		for(int i = 0; i < 10; i++) {

			cola.add(new Proceso(String.format("Proc %d", i), i));

		}

		for(int i = 0; i < 150; i++) {

			Proceso p = cola.poll();

			System.out.printf("Running %s\n", p.name);

			Thread.sleep(500);

			p.runs++;

			p.priority++;

			cola.add(p);

		}

	}

	/* */

	static class Proceso implements Comparable<Proceso> {

		final String name;

		private int priority;

		private int runs;

		/* */

		Proceso(String name, int prio) {

			this.name = name;

			this.priority = prio;

			this.runs = 0;

		}

		@Override

		public int compareTo(Proceso other) {

			if(other != null) {

				if(priority == other.priority) {

					return runs - other.runs;

				}

				return priority - other.priority;

			}

			return -1;

		}

	}

}