考慮以下聲明： public class Dog0
{ public void doNothing(Dog1 a, Dog2 b) {} }
public class Dog1 extends Dog0 {}
public class Dog2 extends Dog1 {}
下列初始化出現在不同的類： Dog0 d0 = new Dog0();
Dog1 d1 = new Dog1
我很新的節目，並做一個簡單的選擇遊戲： Answer = (input("You meet a bear, what do you do? A) Give the bear a hug B) Run away"))
if Answer == ("A)"):
print("The bear chopped your hand off!")
else:
print("Goo