From 7437650f86e6f7d09698e2728b74f09448203b40 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Wed, 15 Jul 2026 16:12:44 +0800
Subject: [PATCH] =?UTF-8?q?day02-=E6=95=B0=E6=8D=AE=E7=B1=BB=E5=9E=8B?=
 =?UTF-8?q?=E8=BD=AC=E6=8D=A2=5F=E5=BC=BA=E5=88=B6=E8=BD=AC=E6=8D=A2-?=
 =?UTF-8?q?=E5=B0=8F=E6=95=B0=E7=9A=84=E8=BD=AC=E6=8D=A2?=
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---
 day02/src/com/inmind/datatype/Demo04.java | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 day02/src/com/inmind/datatype/Demo04.java

diff --git a/day02/src/com/inmind/datatype/Demo04.java b/day02/src/com/inmind/datatype/Demo04.java
new file mode 100644
index 0000000..b666f39
--- /dev/null
+++ b/day02/src/com/inmind/datatype/Demo04.java
@@ -0,0 +1,19 @@
+package com.inmind.datatype;
+/**
+ 小数强转为整数，如何操作的？？强制类型转换
+ 小数转为整数的结果：直接将小数的小数位去掉(精度丢失)
+ */
+public class Demo04 {
+    public static void main(String[] args) {
+        //定义一个单精度浮点数变量
+        float f = 3.14F;
+        //能不能转为整数？？
+        int i = (int) f;
+        System.out.println(i);//3
+        //定义一个单精度浮点数变量
+        double d = 3.1425926;
+        //能不能转为字节？？
+        byte b = (byte) d;
+        System.out.println(b);
+    }
+}