### Question:
CountryBordersPolygon { public boolean inArea(Coordinate c) { if(!Double.isNaN(c.x) && !Double.isNaN(c.y) && inBbox(c)) { GeometryFactory gf = new GeometryFactory(); return boundary.contains(gf.createPoint(c)); } return false; } CountryBordersPolygon(String name, Geometry boundary); double[] getBBox(); boolean shares(MultiPolygon other); boolean crossesBoundary(LineString line); String getName(); MultiPolygon getBoundary(); boolean inBbox(Coordinate c); boolean inArea(Coordinate c); double getArea();  }### Answer:
@Test public void TestPolygonContains() { assertTrue(cbp.inArea(new Coordinate(0.5, 0.5))); assertFalse(cbp.inArea(new Coordinate(-0.5, -0.5))); }