RingPlacer.countHetero(ringSystems); Collections.sort(ringSystems, RingPlacer.RING_COMPARATOR);
RingPlacer.countHetero(ringSystems); Collections.sort(ringSystems, RingPlacer.RING_COMPARATOR);
RingPlacer.countHetero(ringSystems); Collections.sort(ringSystems, RingPlacer.RING_COMPARATOR);
RingPlacer.countHetero(ringSystems); Collections.sort(ringSystems, RingPlacer.RING_COMPARATOR);