What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy?
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What is the benefit of lambda expressions?
Which is a valid identifier?
What is the difference between hashmap and hashtable? What is an interface?
Define package in Java.
What flag up means?
How many types of variables are there?
What is defined as false sharing in the context of multithreading?
How do I know if java is installed?
if am have 100 threads(for ex:T1,T2---T100) how we give priority to these threads and how the system excute these threads
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How many bits does a boolean take?
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