I want to control database connections in my program and want that only one thread should be able to make database connection at a time. How can I implement this logic?
Can we extend private class in java?
What is boolean used for?
What is the difference between JDK and JVM?
What is the basic of java?
what is the difference b/w static and final methods?
Explain naming conventions for packages?
Which is bigger double or float?
What method is used to specify a container's layout in java programming?
When the constructor of a class is invoked?
What is java used for on a computer?
explain System.out.println()
What are the fileinputstream and fileoutputstream?