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| Interview Questions and Answers for 'Raybiz' - 2 question(s) found - Order By Newest | ||||
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| Ans. Anonymous classes are defined in the new expression itself, so you cannot create multiple objects of an anonymous class. You cannot explicitly extend a class or explicitly implement interfaces when defining an anonymous class. An anonymous inner class is always created as part of a statement; don't forget to close the statement after the class definition with a curly brace. This is a rare case in Java, a curly brace followed by a semicolon. Anonymous inner classes have no name, and their type must be either a subclass of the named type or an implementer of the named interface | ||||
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 Discuss Correct / Improve  java oops inner classes anonymous inner classes classes  Asked in 1 Companies | ||||
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 Very frequently asked. Usually followed by questions related to private constructor and synchronized access. Frequently asked in JPMorgan and TCS (Based on 2 feedback) | ||||
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| Ans. http://www.buggybread.com/2014/03/java-design-pattern-singleton-interview.html | ||||
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Discuss Correct / Improve java design pattern singleton at&t ebay fidelity india united healthcare india Asked in 46 Companies  intermediate  frequent | ||||
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| What is the difference between these two approaches of creating singleton Class ? //Double Checked Locking Code public static Singleton createInstance() { if(singleton == null){ synchronized(Singleton.class) { if(singleton == null) { singleton = new Singleton(); } } } return singleton; } //Single checked locking code public static Singleton createInstance() { synchronized(Singleton.class) { if(singleton == null) { singleton = new Singleton(); } } return singleton; } | ||||
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| If you are given choice to either load object eagerly or lazily , which one would you use in case of singleton pattern ? | ||||
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