simplified the println

Author: Alwayswithme

singleton/src/main/java/com/iluwatar/App.java

@@ -24,7 +24,7 @@ public static void main(String[] args) {
 
 		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());
+		System.out.println("enumIvoryTower1=" + enumIvoryTower1);
+		System.out.println("enumIvoryTower2=" + enumIvoryTower2);
 	}
 }

singleton/src/main/java/com/iluwatar/EnumIvoryTower.java

@@ -11,4 +11,9 @@ public enum EnumIvoryTower {
     public static EnumIvoryTower getInstance() {
         return INSTANCE;
     }
+
+    @Override
+    public String toString() {
+        return getDeclaringClass().getCanonicalName() + "@" + hashCode();
+    }
 }