多态

Author: laileon

src/com/blankj/custom/desingn_pattern/polymorphic/Child.java

@@ -0,0 +1,14 @@
+package com.blankj.custom.desingn_pattern.polymorphic;
+
+public class Child extends Parent {
+    String name;
+    String sex;
+
+    public Child() {
+        System.out.println("Child init");
+    }
+
+    public void say(){
+        System.out.println("Child say");
+    }
+}

src/com/blankj/custom/desingn_pattern/polymorphic/Parent.java

@@ -0,0 +1,14 @@
+package com.blankj.custom.desingn_pattern.polymorphic;
+
+public class Parent {
+    String name;
+    String sex;
+
+    public void say(){
+        System.out.println("Parent say");
+    }
+
+    public Parent() {
+        System.out.println("Parent init");
+    }
+}

src/com/blankj/custom/desingn_pattern/polymorphic/Test.java

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+package com.blankj.custom.desingn_pattern.polymorphic;
+
+public class Test {
+    public static void main(String[] args) {
+        Child child = new Child();
+        child.say();
+        Parent child1 = new Child();
+        child1.say();
+    }
+}