Update Singleton_05.java

70953bd6 · 小傅哥 · GitHub · ba613809 · 70953bd6
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itstack-demo-design-5-00/src/main/java/org/itstack/demo/design/Singleton_05.java ...0/src/main/java/org/itstack/demo/design/Singleton_05.java +1 -1

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--- a/itstack-demo-design-5-00/src/main/java/org/itstack/demo/design/Singleton_05.java
+++ b/itstack-demo-design-5-00/src/main/java/org/itstack/demo/design/Singleton_05.java
@@ -2,7 +2,7 @@ package org.itstack.demo.design;

 public class Singleton_05 {

-    private static Singleton_05 instance;
+    private static volatile Singleton_05 instance;

    private Singleton_05() {
    }