From 9240342b366db9999f11659a1f1c396ba418ad78 Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Sat, 7 Jan 2023 18:51:03 +0100
Subject: Adds

---
 Year_2/SE/design_patterns/singleton/Logs.java | 10 ++++++++++
 Year_2/SE/design_patterns/singleton/Main.java | 12 ++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 Year_2/SE/design_patterns/singleton/Logs.java
 create mode 100644 Year_2/SE/design_patterns/singleton/Main.java

(limited to 'Year_2/SE/design_patterns')

diff --git a/Year_2/SE/design_patterns/singleton/Logs.java b/Year_2/SE/design_patterns/singleton/Logs.java
new file mode 100644
index 0000000..85deef9
--- /dev/null
+++ b/Year_2/SE/design_patterns/singleton/Logs.java
@@ -0,0 +1,10 @@
+public class Logs {
+    private static Logs log;
+
+    private Logs(){}
+
+    public static Logs getInstanceLogs() {
+        if(log == null) log = new Logs();
+        return log;
+    }
+}
diff --git a/Year_2/SE/design_patterns/singleton/Main.java b/Year_2/SE/design_patterns/singleton/Main.java
new file mode 100644
index 0000000..5d05cea
--- /dev/null
+++ b/Year_2/SE/design_patterns/singleton/Main.java
@@ -0,0 +1,12 @@
+public class Main {
+    public static void main(String[] args) {
+        Logs l = Logs.getInstanceLogs();
+        Logs l2 = Logs.getInstanceLogs();
+
+        // Prints "true"
+        System.out.println(l == l2);
+
+        // Error, because the constructor is private
+        // Logs l3 = new Logs();
+    }
+}
-- 
cgit v1.2.3-18-g5258