Geng

src/main/java/com/github/hcsp/inheritance/Cat.java

@@ -1,14 +1,12 @@
 package com.github.hcsp.inheritance;
 
-public class Cat {
+public class Cat extends Animal{
+
     private String name;
 
     public Cat(String name) {
-        this.name = name;
-    }
+        super(name);
 
-    public void sayMyName() {
-        System.out.println("我的名字是" + name);
     }
 
     public void meow() {

src/main/java/com/github/hcsp/inheritance/Dog.java

@@ -1,16 +1,14 @@
 package com.github.hcsp.inheritance;
 
-public class Dog {
+public class Dog extends Animal {
     private String name;
 
     public Dog(String name) {
-        this.name = name;
-    }
+        super(name);
 
-    public void sayMyName() {
-        System.out.println("我的名字是" + name);
     }
 
+
     public void wang() {
         System.out.println("汪" + name);
     }

src/main/java/com/github/hcsp/inheritance/Rat.java

@@ -1,16 +1,14 @@
 package com.github.hcsp.inheritance;
 
-public class Rat {
+public class Rat extends Animal {
     private String name;
 
     public Rat(String name) {
-        this.name = name;
-    }
+        super(name);
 
-    public void sayMyName() {
-        System.out.println("我的名字是" + name);
     }
 
+
     public void zhizhi() {
         System.out.println("吱吱" + name);
     }