From acc59661a24e148ea33abaefff06d978da98466a Mon Sep 17 00:00:00 2001
From: Manoj kumar <manojkumardav2004@gmail.com>
Date: Thu, 16 Oct 2025 09:43:07 +0530
Subject: [PATCH] Implement Singleton Design Pattern in Java

---
 Singleton Design Pattern in Java.java | 35 +++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 Singleton Design Pattern in Java.java

diff --git a/Singleton Design Pattern in Java.java b/Singleton Design Pattern in Java.java
new file mode 100644
index 000000000000..22a9974b5538
--- /dev/null
+++ b/Singleton Design Pattern in Java.java	
@@ -0,0 +1,35 @@
+// Singleton Pattern Example
+public class Singleton {
+    // Step 1: Create a private static instance of the same class
+    private static Singleton instance;
+
+    // Step 2: Make the constructor private so no one can instantiate directly
+    private Singleton() {
+        System.out.println("Singleton instance created!");
+    }
+
+    // Step 3: Provide a public static method to get the instance
+    public static Singleton getInstance() {
+        if (instance == null) {
+            // Lazy initialization
+            instance = new Singleton();
+        }
+        return instance;
+    }
+
+    // Example method
+    public void showMessage() {
+        System.out.println("Hello from Singleton Pattern!");
+    }
+
+    // Test it
+    public static void main(String[] args) {
+        Singleton s1 = Singleton.getInstance();
+        Singleton s2 = Singleton.getInstance();
+
+        s1.showMessage();
+
+        // Checking if both objects are same
+        System.out.println("Are both instances same? " + (s1 == s2));
+    }
+}