when a program class implements an interface it must provide
behavior for..?
What is java ioc?
What are jpa annotations?
Why do we need framework in java?
Why java is better than node.js?
How do I install java re?
What is jboss in java?
Can we install jre without jdk?
What is Serialization?
How do I know if I have jre or jdk?
Do I need both jdk and jre?
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.
What is java lang exceptionininitializererror?