What is a service layer in java?
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What do you understand by a variable?
What is messaging queue in java?
In system.out.println(), what is system, out and println?
How do you count in java?
What are the risks in java security? : java security
cant we call run() method directly instead of calling indirectly through the start() method ? if we do so then what is the problem ?
Can an application have multiple classes having main method?
What is use of jpa?
Does jvm maintain a cache by itself? Does the jvm allocate objects in heap? Is this the os heap or the heap maintained by the jvm? Why
How do I run a java program from the command line?
Is it better to learn java or python?
When a thread is created and started, what is its initial state?