From 99c5e4d1a1d93c4e8373aefa925174571528313f Mon Sep 17 00:00:00 2001
From: zhuyanshuo <3663541984@qq.com>
Date: Sun, 19 Apr 2026 10:45:12 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8A=A8=E7=89=A9=E5=8F=AB=E5=A3=B0=E7=B3=BB?=
 =?UTF-8?q?=E7=BB=9F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 w6/Animal.java     | 31 +++++++++++++++++++++++++++++++
 w6/AnimalTest.java | 23 +++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 w6/Animal.java
 create mode 100644 w6/AnimalTest.java

diff --git a/w6/Animal.java b/w6/Animal.java
new file mode 100644
index 0000000..563e4ee
--- /dev/null
+++ b/w6/Animal.java
@@ -0,0 +1,31 @@
+abstract class Animal {
+    // 抽象方法：动物叫声
+    public abstract void makeSound();
+}
+
+// 2. Swimmable 接口
+interface Swimmable {
+    // 游泳方法
+    void swim();
+}
+
+// 3. Dog 类：继承 Animal，实现 Swimmable
+class Dog extends Animal implements Swimmable {
+    @Override
+    public void makeSound() {
+        System.out.println("小狗汪汪叫：汪汪汪！");
+    }
+
+    @Override
+    public void swim() {
+        System.out.println("小狗在水里狗刨式游泳！");
+    }
+}
+
+// 4. Cat 类：继承 Animal，不实现 Swimmable
+class Cat extends Animal {
+    @Override
+    public void makeSound() {
+        System.out.println("小猫喵喵叫：喵喵喵！");
+    }
+}
\ No newline at end of file
diff --git a/w6/AnimalTest.java b/w6/AnimalTest.java
new file mode 100644
index 0000000..79dc59f
--- /dev/null
+++ b/w6/AnimalTest.java
@@ -0,0 +1,23 @@
+public class AnimalTest {
+    public static void main(String[] args) {
+        // 多态方式创建对象
+        Animal dog = new Dog();
+        Animal cat = new Cat();
+
+        // 调用 makeSound 方法（多态体现）
+        System.out.println("=== 动物叫声测试 ===");
+        dog.makeSound();
+        cat.makeSound();
+
+        // 测试 Swimable 接口（Dog 能游泳，Cat 不能）
+        System.out.println("\n=== 游泳能力测试 ===");
+        if (dog instanceof Swimmable) {
+            ((Swimmable) dog).swim();
+        }
+        if (cat instanceof Swimmable) {
+            ((Swimmable) cat).swim();
+        } else {
+            System.out.println("小猫不会游泳哦！");
+        }
+    }
+}