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Summary of Collections

In this Blog i am explaining about the overview of collection. what is a collection ,how many interfaces are there in collection what are the common method for all implementation of collection interfaces.
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Java 8 Optional Class

In this blog we are going to show you What is Optional class, how to work with Optional class, What are the methods are there in Optional class and How to work with the Optional class methods. Optional class was introduced in Java 8, It is present in java.util package i.e. java.util.Optional.
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In this blog, I will explain how the LinkedHashSet will work . In which scenarios we should use LinkedHashSet will be understand by this blog. LinkedHashSet is introduced in java 1.4 as part of java.util package.
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