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Why is there no polymorphic-type response from a create() or find() method?
Ans) The EJB Specification forbids this behavior, and the weblogic.ejbc compiler checks for this behavior and prohibits any polymorphic type of response from a create() or find() method.
The cause the create() and find() methods are not polymorphic is same to the reason constructors are not polymorphic in Java. The derived classes commonly do not know or cannot initialize the base class properly.
Prove the equations A + A‾ .B + A.B‾ = A + B using the Boolean algebraic theorems ? Ans. The equation is A + A‾.B + A.B‾ = A + B L.H.S. = A + A‾ .B + A.B‾ = (A + A.B‾) + A‾.B
Translate each of the following sentences into predicate calculus, conceptual dependencies, and conceptual graphs: 1. Bill sold the book to the book store." 2. "John borrowed
Like ULINE the statement VLINE is used to insert vertical lines. No , Vline is not used to insert vertical lines.
Explain Concurrent Sharing Here a number of programs that may share a file simultaneously. While this is the case, it is necessary to prevent mutual interference among them. Th
Q. Illustrate about fourth generation computers? One of the main milestones in IC technology is Very large scale integration (VLSI) where thousands of transistors can be integr
It is a mixture of hardware and software to perform needed task
Visual basic is useful if you are planning to make the programs from scratch. This language helps you in producing Active x controls, exe files, etc. Visual script is a powerful t
Depth-first search is different from Breadth-first search in the following ways: A depth search traversal method goes to the deepest level of the tree first and then works up w
Every input line of combinational circuit represents a specific element of the string let's say xi and every output line results in the form of a sorted list. In order to get the a
Central processing unit (CPU) : The part of the computer which executes program instructions is known as the processor or central processing unit (CPU). CPU is over single ele
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