What are the two parts of a floating point number’s storage area called?
What will be an ideal response?
mantissa and characteristic
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Describe where the observer pattern is used in the analysis model (participating classes, roles). Answer the same question for the source code (object model).
Observer pattern – Implementation We will show the Observer pattern implementation Exercise – Programming Assignment: Adapter pattern 1) Adapter pattern – Modeling A new instrument (AnalogSpeedometer) from a legacy system has to be integrated into Asteroids (see Figure 1). The existing class AnalogSpeedometer must not be changed. Therefore an Adapter pattern should be used. Integrate the AnalogSpeedometer into the existing model. Figure 1: Asteroids classes, AnalogSpeedometer Task 1) Mapping the analysis objects to code The analysis objects in Figure 1 are implemented in the source code. For every class in the analysis model specify its implementing class and its package in the source code (and therefore in the object model). Hint: There is not necessarily a one to one mapping. Task 2) Identification of the observer pattern Describe where the observer pattern is used in the analysis model (participating classes, roles). Answer the same question for the source code (object model). Task 3) Extension of the model Extend the analysis model by a new class Compass that shows the direction of the space shuttle. Task 4) Observer pattern – Implementation (programming assignment) Implement the Compass according to your analysis. Task 5) Bonus: Adapter pattern Assume there the following new requirement has been formulated for the Asteroids game:
Where are the slots that hold RAM chips located?
A) In the expansion bays B) On the motherboard C) In the hard drive D) In the USB ports
You can point your router to a DNS server for name resolution simply by configuring the ____ command.
A. ip name-server B. ip domain dns C. ip dns-server D. ip domain-server
What is wrong with the following enqueue algorithm?Algorithm enqueue (queue, dataIn) allocate (new node) move dataIn to new node data set new node next to null pointer if (empty queue) set queue front to address of new data else set next pointer of rear node to address of new node end if set queue rear to address of new node increment queue count return trueend enqueue
A. It does not test if the queue is empty. B. It does not test if the queue is full. C. It does not display error messages. D. The next pointer of rear node should be set to null.