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What is the difference between long.class and long.type?
What is the difference between system.out ,system.err and system.in?
What is a class loader?
Explain the different types of memory used by jvm?
Which are the different segments of memory?
Difference between new operator and class.forname().newinstance()?
What is metaspace?
What are the design considerations while making a choice between using interface and abstract class?
What is permgen or permanent generation?
Difference between loadclass and class.forname?
Are enterprise beans allowed to use thread.sleep()?
What is clustering? What are the different algorithms used for clustering?
What is the diffrence between a local-tx-datasource and a xa-datasource?
Is there a guarantee of uniqueness for entity beans?
What is re-entrant. Is session beans reentrant. Is entity beans reentrant?
