From 61801feaa8f77af917eb622efb7ea5317211858a Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Wed, 1 Apr 2026 14:28:01 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day12-=E9=A2=84=E5=AE=9A?=
 =?UTF-8?q?=E4=B9=89=E5=AF=B9=E8=B1=A1(=E4=BA=86=E8=A7=A3)?=
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---
 .../src/com/inmind/refelct02/Demo03.java       | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 javaSE-day12/src/com/inmind/refelct02/Demo03.java

diff --git a/javaSE-day12/src/com/inmind/refelct02/Demo03.java b/javaSE-day12/src/com/inmind/refelct02/Demo03.java
new file mode 100644
index 0000000..79cae6b
--- /dev/null
+++ b/javaSE-day12/src/com/inmind/refelct02/Demo03.java
@@ -0,0 +1,18 @@
+package com.inmind.refelct02;
+/*
+4.预定义对象(了解)
+没有.class文件的Class对象，就是预定义对象,例如基本数据类型和数组
+
+注意：在反射中，这些预定义对象，可以直接使用，作为参数
+ */
+public class Demo03 {
+    public static void main(String[] args) {
+        Class<Integer> iClass = int.class;
+        System.out.println(iClass);
+        Class<Byte> byteClass = byte.class;
+        System.out.println(byteClass);
+        Class<int[]> arrClass = int[].class;
+        System.out.println(arrClass);
+
+    }
+}