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.Management Sciences
A. Singleton pattern
B. Facade Pattern
C. Observer pattern
D. Factory method pattern
Explanation: Observer pattern defines one-to-many dependency among objects so that when one object changes its state, all its dependents are notified.
Related Mcqs:
- UML interfaces are used to_____________________?
- A. specify required services for types of objects B. program in Java, but not in C++ or Smalltalk C. define executable logic to reuse across classes D. define an API for all classes...
- Which things in UML are the explanatory parts of UML models ?
- A. Structural things B. Behavioral things C. Grouping things D. Annotational things...
- Specifying a set of test cases or test paths for each item to be tested at that level is known as__________________?
- A. Test case generation B. Test case design C. ALL of the mentioned D. None of the mentioned...
- A software might allow a user to interact via________________________?
- A. keyboard commands B. mouse movement C. voice recognition commands D. all of the mentioned...
- _______________________ defines the properties of a data object and take on one of the three different characteristics ?
- A. data object B. attributes C. relationships D. data object and attributes...
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