User:Javajava~enwikibooks

JavaJava : liran's wiki page.

Singleton design pattern options link: http://howtodoinjava.com/2012/10/22/singleton-design-pattern-in-java/

Lazy initialization: public final class LazySingleton { private static volatile LazySingleton instance = null; // private constructor private LazySingleton { }   public static LazySingleton getInstance { if (instance == null) { synchronized (LazySingleton.class) { instance = new LazySingleton; }       }        return instance; } }

Java Developer Interview Questions google search : https://www.google.co.il/search?q=Java+Developer+Interview+Questions&oq=Java+Developer+Interview+Questions&aqs=chrome..69i57.541j0j4&sourceid=chrome&es_sm=93&ie=UTF-8

http://www.javacodegeeks.com/2014/04/java-interview-questions-and-answers.html