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What is messaging queue in java?
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Is jdk required for netbeans?
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.
cant we call run() method directly instead of calling indirectly through the start() method ? if we do so then what is the problem ?
Name primitive java types.
i have make jar file but when i click in this file then arr swhow "no faund main class" plese help me in this problem becose i want to make a jar file as a dxdcutable file
What is java language expression?
Why do we need framework in java?
What if I do not provide the string array as the argument to the method?
What is persistence xml in java?
What are tags in java?
Explain the encapsulation principle.
How can one prove that the array is not null but empty?
Java J2EE 
