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| Interview Questions and Answers for 'Cardinal health' - 2 question(s) found - Order By Rating | ||||
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| Ans. Both are creational design patterns. Singleton is used when we would like to reuse an object if object is not supposed to hold request or thread specific information. Inversely Prototype is used in situations where we would like to reuse the object information but the request / thread may require it own data to be persisted. In short, Singleton is used in situations where we can live with single object being shared across multiple requests or threads whereas Prototype is used when we need duplicate copies of objects. | ||||
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| Ans. Multi Level Inheritance is multi level hierarchy of classes. Here is the example - http://www.buggybread.com/2015/09/java-se-class-diagram-classes-that_603.html Class RoleList extends ArrayList which in turn extends AbstractList which in turn extends AbstractCollection. | ||||
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| Discuss Correct / Improve multilevel inheritance object oriented programming (oops) oops concepts inheritance object oriented programming (oops) oops concepts oops concepts Asked in 3 Companies basic | ||||
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