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What is @qualifier in java?
Where is singleton design pattern used in java?
What is war file in java?
What does @override mean in java?
What is lazy loading in jpa?
What is meant by annotation in java?
In which language eclipse is developed?
What is java lang exceptionininitializererror?
What is the locale class?
Which framework is best for rest api java?
What is jdk for netbeans ide?
What is type inference? Is type inference available in older versions like java 7 and before 7 or it is available only in java se 8?
What are the risks in java security? : java security
Is java an api?
In a barber shop there are 2 doors. customer come in 1 door, leave in other. minimum # of chairs. barber spend his life in cutting. always barber can cut 1 customer. few chairs in the shop. if barber busy customer waits, if chairs full, customer leave. if no customer, barber sleeps. treat barber and customer as 2 threads. you can use Semaphore class with arrive and depart and count as parameter.
