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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.
Differentiate between EPROM and EEPROM. EPROM: The meaning of this term is Erasable PROM. This can be reprogrammed through first erasing the existing program. EPROM uses N-MO
It speeds execution of distributed applications. It runs on dissimilar platforms. It time independent. No loss for msg delivery i.e. guarantee delivery.
Which TTL logic gate is used for wired ANDing ? Ans. Open collector output, TTL logic gate is used.
It is possible to enter one or more criteria in the rows which can influence your database significantly. >="Callahan" this returns all the several records from Callahan to the
Q. What are the types of Instructions? Computer instructions are translation of high level language code to machine level language programs. So from this point of view machine
Make a class library and describe class 'User'. In User class describe the public, protected and Friend functions. Make a console application andadd a reference to this library and
What are the uses of interrupts? Recovery from errors Debugging Communication among programs Use of interrupts in operating system
An HTML tag is a syntactical construct in the HTML language that abbreviates particular instructions to be implemented when the HTML script is loaded into a Web browser. It is like
Assume you own your own small party supply and rental business. You keep an Excel list of potential customers and clients who have rented or purchased from you in the past 2 years.
Problem a) Distributed network architecture is whereby services are executed and distributed among various computers. Give two advantages and two disadvantages of the distrib
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