day09--super与this关键字内存图解

day09/src/com/inmind/extends_this_super05/Demo08.java

@@ -18,4 +18,8 @@ this关键字的作用：
     c.this可以调用其他的重载的构造方法，不能相互调用
  */
 public class Demo08 {
+    public static void main(String[] args) {
+        Zi zi = new Zi();
+        zi.show();
+    }
 }

day09/src/com/inmind/extends_this_super05/Fu.java

@@ -2,6 +2,7 @@ package com.inmind.extends_this_super05;
 
 public class Fu {
     int numFu = 10;
+    String name = "父类的name";
 
     public Fu(){}
 

day09/src/com/inmind/extends_this_super05/Zi.java

@@ -2,7 +2,7 @@ package com.inmind.extends_this_super05;
 
 public class Zi extends Fu{
     int numZi = 20;
-    String name;
+    String name = "子类的name";
 
     public Zi(){
         //调用有参构造即可
@@ -15,11 +15,17 @@ public class Zi extends Fu{
     public Zi(int numZi ,String name){
         super();
         this.numZi = numZi;
-        this.name = name;
+        if (name != null) {
+            this.name = name;
+        }
         System.out.println("必须要执行的初始化操作1");
         System.out.println("必须要执行的初始化操作2");
         System.out.println("必须要执行的初始化操作3");
     }
+    public void show(){
+        System.out.println(this.name);
+        System.out.println(super.name);
+    }