QA's approach 2 Java - Java API class hierarchy

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QA's approach 2 Java - Understanding Static context

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QA's approach 2 Java - Collections Framework & Generics Introduction

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Why Collections & why is it called a Framework? First Question: Why Collections? Collections are used to overcome problems with variables, arrays, classes like size problem, type problem, non existence of predefined operations/methods, etc. To get a Overview of the above discussed problems, click on this link What is a Framework? Its a semi-finished re-usable application, providing some low level services, which can be customized according to our requirement.  Second Question: Why is it called a Framework? Collection API is available in util package & its called a Framework for the reason that, java programmers were not restricted to just utilize the existing classes making them final but was allowed to expand on top of the exiting classes inheriting them. Collections framework gives a clear example of when to use Interface & abstract class Classification of Collection Framework: In Collection Framework all the classes are classified into 3 cat...
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Technologies - Log4J - Create Log4j Configuration File - Where ? How ? What ?

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