From f0971473233b57d1b9fdb94379b34f814bd91285 Mon Sep 17 00:00:00 2001
From: xuuuuu <2316679591@qq.com>
Date: Mon, 23 Jun 2025 15:37:39 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=20rc/main/java/Singleton.jav?=
 =?UTF-8?q?a?=
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---
 rc/main/java/Singleton.java | 39 ++++++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/rc/main/java/Singleton.java b/rc/main/java/Singleton.java
index 9196dcd..f0c8a77 100644
--- a/rc/main/java/Singleton.java
+++ b/rc/main/java/Singleton.java
@@ -1,16 +1,23 @@
-package cn.edu.zust.dubbo;
-
-public class Singleton {
-    private int number =2025;
-    public void setNumber(int number){
-        this.number=number;
-    }
-    public int getNumber(){
-        return number;
-    }
-    private static Singleton instance =new Singleton();
-    private Singleton(){}
-    public  static  Singleton getInstance(){
-        return  instance;
-    }
-}
+public class SingletonPattern {
+    // 单例模式实现示例
+    private static SingletonPattern instance;
+    
+    private SingletonPattern() {}  // 私有构造函数
+    
+    public static SingletonPattern getInstance() {
+        if (instance == null) {
+            instance = new SingletonPattern();
+        }
+        return instance;
+    }
+    
+    public void showMessage() {
+        System.out.println("Singleton Pattern Demo");
+    }
+    
+    // 程序入口
+    public static void main(String[] args) {
+        SingletonPattern singleton = SingletonPattern.getInstance();
+        singleton.showMessage();
+    }
+}