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23 lines
720 B
23 lines
720 B
public class AnimalTest {
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public static void main(String[] args) {
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// 多态方式创建对象
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Animal dog = new Dog();
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Animal cat = new Cat();
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// 调用 makeSound 方法(多态体现)
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System.out.println("=== 动物叫声测试 ===");
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dog.makeSound();
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cat.makeSound();
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// 测试 Swimable 接口(Dog 能游泳,Cat 不能)
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System.out.println("\n=== 游泳能力测试 ===");
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if (dog instanceof Swimmable) {
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((Swimmable) dog).swim();
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}
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if (cat instanceof Swimmable) {
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((Swimmable) cat).swim();
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} else {
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System.out.println("小猫不会游泳哦!");
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}
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}
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}
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