can we take more than one null values for Unique
constraints.
Hi i am creating desktop application in that i want calling to mobile number. i have java telephone api (JTAPI) but i dont understand how it configure & use plese help me
What is nested interface?
What is the difference between the reader/writer class hierarchy and the inputstream/outputstream class hierarchy in java programming?
What is instanceof keyword?
What is local class in java?
Real Time sample code for Encapsulation and Abstraction. where to use abstract and where to use specifies like public private.
What is not thread safe?
What is gc()?
Why put method is used?
What is time complexity algorithm?
What is a variable simple definition?
Explain the usage of this with constructors?