What is flatmap in java8?
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What are the advantages of java 8’s date and time api over old date api and joda time api?
What is http session in java?
What is dto layer in java?
What is log4j in java?
What is a static method?
Define network programming?
What services can invoke lambda?
What is lambda used for?
What is an actionevent in java?
What is jar file in java?
Where is singleton design pattern used in java?
Do I need both jdk and jre?