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enum approach of singleton

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yejinchang
2014-11-24 17:35:52 +08:00
parent 13e6c74d97
commit 13abf49024
2 changed files with 18 additions and 0 deletions
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4
singleton/src/main/java/com/iluwatar/App.java
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@ -22,5 +22,9 @@ public class App {
System.out.println("threadSafeIvoryTower1=" + threadSafeIvoryTower1);
System.out.println("threadSafeIvoryTower2=" + threadSafeIvoryTower2);
EnumIvoryTower enumIvoryTower1 = EnumIvoryTower.getInstance();
EnumIvoryTower enumIvoryTower2 = EnumIvoryTower.getInstance();
System.out.println("enumIvoryTower1=" + enumIvoryTower1.getDeclaringClass().getCanonicalName() + "@" + enumIvoryTower1.hashCode());
System.out.println("enumIvoryTower2=" + enumIvoryTower2.getDeclaringClass().getCanonicalName() + "@" + enumIvoryTower2.hashCode());
}
}