What is java persistence api used for?
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write a code in jsp to swap two numbers?
What is an interceptor in java?
How can one prove that the array is not null but empty?
how ahstraction is the property of oops,this is also in c and c++ ex. printf function which is also hide the unnecessary data,so what is the difference ? and does c++ fallow the abstraction?
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Why there are no global variables in java?
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What is phantom memory?
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