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22 lines
523 B
22 lines
523 B
public abstract class AinmalSound {
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public abstract void makeSound();
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}
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interface Swimmable{
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void swim();
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}
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class Cat extends AnimalSound {
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@Override
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public void makeSound() {
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System.out.println("猫：喵喵喵！");
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}
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}
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class Dog extends AnimalSound implements Swimmable {
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@Override
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public void makeSound() {
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System.out.println("狗：汪汪汪！");
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}
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@Override
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public void swim() {
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System.out.println("狗：我会游泳！");
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}
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}
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