From 9e3ba052281f1afee9c73fb210fbaa4a4222cc08 Mon Sep 17 00:00:00 2001
From: Wengxiyi <2179205527@qq.com>
Date: Mon, 20 Apr 2026 10:04:14 +0800
Subject: [PATCH] feat:W6

---
 W6/Animal.java     |  5 +++++
 W6/AnimalTest.java | 13 +++++++++++++
 W6/Cat.java        |  8 ++++++++
 W6/Dog.java        | 12 ++++++++++++
 W6/Swimmable.java  |  5 +++++
 5 files changed, 43 insertions(+)
 create mode 100644 W6/Animal.java
 create mode 100644 W6/AnimalTest.java
 create mode 100644 W6/Cat.java
 create mode 100644 W6/Dog.java
 create mode 100644 W6/Swimmable.java

diff --git a/W6/Animal.java b/W6/Animal.java
new file mode 100644
index 0000000..2411c0e
--- /dev/null
+++ b/W6/Animal.java
@@ -0,0 +1,5 @@
+package W6;
+
+public abstract class Animal {
+    public abstract void makeSound();
+}
diff --git a/W6/AnimalTest.java b/W6/AnimalTest.java
new file mode 100644
index 0000000..0d5525e
--- /dev/null
+++ b/W6/AnimalTest.java
@@ -0,0 +1,13 @@
+package W6;
+
+public class AnimalTest {
+    public static void main(String args[]){
+        Animal dog=new Dog;
+        Animal cat=new Cat;
+        dog.makeSound();
+        cat.makeSound();
+        if (dog instanceof Swimmable){
+            ((Swimmable)dog).swim();
+        }
+    }
+}
diff --git a/W6/Cat.java b/W6/Cat.java
new file mode 100644
index 0000000..ccbd850
--- /dev/null
+++ b/W6/Cat.java
@@ -0,0 +1,8 @@
+package W6;
+
+public class Cat extends Animal{
+    @Override
+    public void makeSound(){
+        System.out.println("喵喵喵");
+    }
+}
diff --git a/W6/Dog.java b/W6/Dog.java
new file mode 100644
index 0000000..1776c48
--- /dev/null
+++ b/W6/Dog.java
@@ -0,0 +1,12 @@
+package W6;
+
+public class Dog extends Animal implements Swimmable{
+    @Override
+    public void makeSound(){
+        System.out.println("汪汪汪");
+    }
+    @Override
+    public void swim(){
+        System.out.println("狗会游泳");
+    }
+}
diff --git a/W6/Swimmable.java b/W6/Swimmable.java
new file mode 100644
index 0000000..7864098
--- /dev/null
+++ b/W6/Swimmable.java
@@ -0,0 +1,5 @@
+package W6;
+
+public interface Swimmable {
+    void swim();
+}