what about jdb and javadoc by example ?
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Is jdk a compiler?
What is Map,List,hashtable,ArrayList and difference between them??
Which class is the superclass of every class?
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 reflection in java?
Why do we only use the main method to start a program?
In system.out.println(), what is system, out and println?
What about products that claim to block java applets at a firewall? : java security
Are jvm’s platform independent?
Is java secure? : java security
Can java program run without jdk?
How can the static main method use instance variables?