11. Candy
Food interface, Candy class, ComboCandy subclass.
The Food interface has methods String getName() and String getTaste().
The Candy class implements the Food interface. When printed out,
it shows the name of the candy and the flavor (as seen below).
Candy c = new Candy("Red hots", "cinnamon");
Candy d = new Candy("Little Mints", "peppermint");
Candy e = new ComboCandy("swirl", c, d);
System.out.println(c); // "Red hots: cinnamon"
System.out.println(d); // "Little Mints: peppermint"
System.out.println(e); // "Combo: swirl of cinnamon and peppermint"
Notice that the combo candy always prints out as “Combo” before the flavor.