### Question:
Colors { public static Color getHexColor(String hexString) { Matcher matcher = HEX_PATTERN.matcher(hexString); if (matcher.matches()) { return Color.decode(hexString); } return null; } private  Colors(); static Paint getColor(Attributed attributed); static Color getHexColor(String hexString); static Map<String,Paint> VERTEX_TYPE_TO_COLOR_MAP; static Map<String,Paint> EDGE_TYPE_TO_COLOR_MAP; }### Answer:
@Test public void testParseHashHexColor() { Color hexColor = Colors.getHexColor("#ff0000"); assertEquals(Color.RED, hexColor); }
@Test public void testParseHexColor() { Color hexColor = Colors.getHexColor("0xff0000"); assertEquals(Color.RED, hexColor); }