From b8f24ac1a689fe14dba43962a79de0f88527f642 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 20 Jan 2026 14:01:04 +0800
Subject: [PATCH] =?UTF-8?q?day08-=E5=B8=B8=E7=94=A8=E7=B1=BB=5FString?=
 =?UTF-8?q?=E7=9A=84=E6=AF=94=E8=BE=83=E7=9A=84=E6=96=B9=E6=B3=95=5Fequals?=
 =?UTF-8?q?=5FequalsIgnoreCase?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 day08/src/com/inmind/string01/Demo03.java | 30 +++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 day08/src/com/inmind/string01/Demo03.java

diff --git a/day08/src/com/inmind/string01/Demo03.java b/day08/src/com/inmind/string01/Demo03.java
new file mode 100644
index 0000000..700e353
--- /dev/null
+++ b/day08/src/com/inmind/string01/Demo03.java
@@ -0,0 +1,30 @@
+package com.inmind.string01;
+/*
+常用类_String的比较的方法_equals_equalsIgnoreCase
+
+String的比较：
+==：表示比较String对象的地址，其实没有任何意义，==一般用于基本数据类型的值是否相等比较
+equals：表示比较String对象地址所指向的内容
+
+比较的方法：
+public boolean equals (Object anObject) ：将此字符串与指定对象进行比较。
+public boolean equalsIgnoreCase (String anotherString) ：将此字符串与指定对象进行比较，忽略大小
+写。
+ */
+public class Demo03 {
+    public static void main(String[] args) {
+        String str1 = "abc";
+        String str2 = new String("abc");
+        System.out.println(str1);
+        System.out.println(str2);
+        //比较字符串的内容是否相同
+        System.out.println(str1 == str2);//比较地址，错误操作
+        boolean result = str1.equals(str2);//比较内容，正确操作
+        System.out.println(result);//true
+
+        String str3 = "AbC";
+        System.out.println(str1.equals(str3));//false
+        System.out.println(str1.equalsIgnoreCase(str3));//true
+
+    }
+}