Added book reference to singleton enum implementation.

2014-11-26 22:41:44 +02:00
parent b73429cd95
commit baf177a81e
1 changed files with 2 additions and 0 deletions
--- a/singleton/src/main/java/com/iluwatar/EnumIvoryTower.java
+++ b/singleton/src/main/java/com/iluwatar/EnumIvoryTower.java
@@ -3,9 +3,11 @@ package com.iluwatar;
 /**
 *
 * Enum Singleton class.
+ * Effective Java 2nd Edition (Joshua Bloch) p. 18
 *
 */
 public enum EnumIvoryTower {
+	
    INSTANCE;

    @Override