### Question:
PointList implements Iterable<GHPoint3D>, PointAccess { @Override public boolean equals( Object obj ) { if (obj == null) return false; PointList other = (PointList) obj; if (other.isEmpty() && other.isEmpty()) return true; if (this.getSize() != other.getSize() || this.is3D() != other.is3D()) return false; for (int i = 0; i < size; i++) { if (!NumHelper.equalsEps(latitudes[i], other.latitudes[i])) return false; if (!NumHelper.equalsEps(longitudes[i], other.longitudes[i])) return false; if (is3D && !NumHelper.equalsEps(elevations[i], other.elevations[i])) return false; } return true; } PointList();  PointList( int cap, boolean is3D ); @Override boolean is3D(); @Override int getDimension(); @Override void ensureNode( int nodeId ); @Override void setNode( int nodeId, double lat, double lon ); @Override void setNode( int nodeId, double lat, double lon, double ele ); void set( int index, double lat, double lon, double ele ); void add( double lat, double lon ); void add( double lat, double lon, double ele ); void add( PointAccess nodeAccess, int index ); void add( GHPoint point ); void add( PointList points ); int size(); int getSize(); boolean isEmpty(); @Override double getLat( int index ); @Override double getLatitude( int index ); @Override double getLon( int index ); @Override double getLongitude( int index ); @Override double getElevation( int index ); @Override double getEle( int index ); void reverse(); void clear(); void trimToSize( int newSize ); @Override String toString(); List<Double[]> toGeoJson(); List<Double[]> toGeoJson( boolean includeElevation ); @Override boolean equals( Object obj ); PointList clone( boolean reverse ); PointList copy( int from, int end ); @Override int hashCode(); double calcDistance( DistanceCalc calc ); void parse2DJSON( String str ); GHPoint3D toGHPoint( int index ); @Override Iterator<GHPoint3D> iterator(); static PointList EMPTY; }### Answer:
@Test public void testEquals() { assertEquals(Helper.createPointList(), PointList.EMPTY); PointList list1 = Helper.createPointList(38.5, -120.2, 43.252, -126.453, 40.7, -120.95, 50.3139, 10.612793, 50.04303, 9.497681); PointList list2 = Helper.createPointList(38.5, -120.2, 43.252, -126.453, 40.7, -120.95, 50.3139, 10.612793, 50.04303, 9.497681); assertEquals(list1, list2); }