Answer:
(c) the dynamic type of reference will determine which of the methods to call.
Explanation:
Polymorphism in Object Oriented Programming typically means the same method name can cause different actions depending on which object it is invoked on. Polymorphism allows for dynamic binding in that method invocation is not bound to the method definition until the program executes.
So in the case of Animal superclass and Mammal subclass, both having a method called eat() with identical signatures and return types, depending on which reference, the correct method eat() will be called dynamically upon execution.
For example, if we have the following;
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<em>Mammal mammal = new Animal();</em>
<em>mammal.eat()</em>
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The eat() method that will be called is the one in the Mammal subclass.
However, if we have;
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<em>Animal animal = new Animal();</em>
<em>animal.eat()</em>
================================
The eat() method of the Animal superclass will be called.
Answer:
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Explanation:
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<h3>
First, you need to cut off power to the PSU</h3>
- <u>Hit the switch on the back of the PC to turn off supply to the PSU.
</u>
- <u>Extract the side panel (usually held on by two screws on the rear)</u>
- <em>If you do not already have a GPU installed, skip to Step 7.</em>
3. Remove the screws holding the GPU in on the rear bracket. ...
4. <u>Unlock the PCI-e slot clip.</u>
5. <u>Remove the GPU by lightly pulling on the card.</u>
6. <u>Hover the GPU over PCI-e slot.</u>
7. Push down on the GPU to slide the connector into the slot.
8. <u>Ensure the secure lock clicks into place.</u>
9. <u>Screw the rear bracket down to secure the card to the chassis.</u>
10. <u>Connect any required PSU cables.</u>
11. <u>Reattach the side panel</u>,
- <em>Now, all you need to do is to plug in the display connectors on the rear of the case, whether they're DisplayPort, HDMI, DVI, or VGA. After that, hit the PSU power switch and boot up Windows. If the PC does not turn on or no signals get sent to the monitor, we'll need to double-check that all cables are connected correctly (both inside and on the rear of the PC), and the GPU is seated properly in the PCIe slot.</em>