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32 lines
631 B
32 lines
631 B
// 抽象类 Animal
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abstract class Animal {
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public abstract void makeSound();
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}
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// 接口 Swimmable
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interface Swimmable {
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void swim();
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}
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// Dog 类继承 Animal 并实现 Swimmable
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class Dog extends Animal implements Swimmable {
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@Override
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public void makeSound() {
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System.out.println("狗叫：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("狗会游泳，正在狗刨...");
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}
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}
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// Cat 类继承 Animal，不实现 Swimmable
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class Cat extends Animal {
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@Override
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public void makeSound() {
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System.out.println("猫叫：喵喵喵~");
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}
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}
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