day09-继承中区分子类方法中重名的三种变量

day09/src/com/inmind/extends_member02/Demo02.java

@@ -15,5 +15,7 @@ public class Demo02 {
         zi.methodZi();
         System.out.println("----------");
         zi.methodFu();
+        System.out.println("----------3种同名变量的访问--------------");
+        zi.method();
     }
 }

day09/src/com/inmind/extends_member02/Fu.java

@@ -2,7 +2,7 @@ package com.inmind.extends_member02;
 //父类
 public class Fu {
     int numFu = 200;
-    int num = 201;
+    int num = 201;//父类的成员变量
     public void methodFu(){
         System.out.println(numFu);
         System.out.println(num);

day09/src/com/inmind/extends_member02/Zi.java

@@ -2,11 +2,18 @@ package com.inmind.extends_member02;
 //子类
 public class Zi extends Fu {
     int numZi = 100;
-    int num = 101;
+    int num = 101;//子类的成员变量
 
     public void methodZi(){
         System.out.println(numFu);
         System.out.println(numZi);
         System.out.println(num);
     }
+
+    public void method(){
+        int num = 50;//局部变量
+        System.out.println(num);//局部变量
+        System.out.println(this.num);//本类的成员变量
+        System.out.println(super.num);//父类的成员变量
+    }
 }