diff --git a/day05/src/com/inmind/array01/Demo02.java b/day05/src/com/inmind/array01/Demo02.java
index 0d05fbd..4bab85a 100644
--- a/day05/src/com/inmind/array01/Demo02.java
+++ b/day05/src/com/inmind/array01/Demo02.java
@@ -27,5 +27,6 @@ public class Demo02 {
         System.out.println(arr2[1]);//2
         //虽然arr2的长度为2，能否查看arr2的第三个空间的值？？不能，否则java.lang.ArrayIndexOutOfBoundsException
         //System.out.println(arr2[2]);
+
     }
 }
diff --git a/day05/src/com/inmind/array01/Demo03.java b/day05/src/com/inmind/array01/Demo03.java
new file mode 100644
index 0000000..2b98df2
--- /dev/null
+++ b/day05/src/com/inmind/array01/Demo03.java
@@ -0,0 +1,25 @@
+package com.inmind.array01;
+/*
+数组的内存原理_一个数组的内存图解
+ */
+public class Demo03 {
+    public static void main(String[] args) {
+        //动态初始化的方式，创建一个存放boolean的数组，长度为3
+        /*boolean[] arr1 = new boolean[3];
+        System.out.println(arr1[0]);//false*/
+
+        int[] arr = new int[3];
+        /*
+        [I@4eec7777
+        [:表示数组
+        I:表示int
+        4eec7777:表示数组的存储地址(十六进制)
+         */
+        System.out.println(arr);
+        arr[1] = 100;
+        //打印数组的第1,2个空间的值
+        System.out.println(arr[0]);//0
+        System.out.println(arr[1]);//100
+
+    }
+}