### Question:
DBIGExtended extends DBIG { boolean isOdd() { return (w[0] & 1) == 1; } DBIGExtended(DBIG dbig);   DBIGExtended(byte[] bytes);   }### Answer:
@Test void isOdd1() { DBIGExtended a = new DBIGExtended(new DBIG(1)); assertTrue(a.isOdd()); }
@Test void isOdd2() { DBIGExtended a = new DBIGExtended(new DBIG(2)); assertFalse(a.isOdd()); }