diff --git a/javaSE-day01/src/com/inmind/object01/Demo01.java b/javaSE-day01/src/com/inmind/object01/Demo01.java
new file mode 100644
index 0000000..f9b66d5
--- /dev/null
+++ b/javaSE-day01/src/com/inmind/object01/Demo01.java
@@ -0,0 +1,14 @@
+package com.inmind.object01;
+/*
+Object:是所有类的父类,java中所有的类直接或者间接继承自Object
+ */
+public class Demo01 {
+    public static void main(String[] args) {
+        //普通创建对象
+        Person p = new Person();
+        Student s = new Student();
+        //多态创建对象
+        Person p1 = new Student();
+
+    }
+}
diff --git a/javaSE-day01/src/com/inmind/object01/Person.java b/javaSE-day01/src/com/inmind/object01/Person.java
new file mode 100644
index 0000000..f8db2f6
--- /dev/null
+++ b/javaSE-day01/src/com/inmind/object01/Person.java
@@ -0,0 +1,4 @@
+package com.inmind.object01;
+
+public class Person {//直接继承自Object
+}
diff --git a/javaSE-day01/src/com/inmind/object01/Student.java b/javaSE-day01/src/com/inmind/object01/Student.java
new file mode 100644
index 0000000..f870567
--- /dev/null
+++ b/javaSE-day01/src/com/inmind/object01/Student.java
@@ -0,0 +1,4 @@
+package com.inmind.object01;
+
+public class Student extends  Person{//间接继承自Object
+}