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What else can I help you with?
Why do you need runtime polymorphismis inheritance necessary for it?
Runtime polymorphism is required because accessing the runtime type of an object is expensive. And yes, inheritance is required for it because polymorphism is enabled through virtual functions. It is not the programmer's responsibility to determine the runtime type of an object because that information should be provided by the object's own virtual table. Thus when you implicitly invoke a virtual method of the base class, you rightly expect most-derived method to be executed, even when you cannot know in advance the exact type of the derivative -- all you know is that it is a type of base class. And that's all you need for polymorphism to work. If you ever find yourself having to turn on the runtime type of an object in order to invoke one of its methods, then you need to seriously consider redesigning your classes. How can your code possibly cope with a runtime type it has no knowledge of, such as a derived object of a class created by a third-party? In those instances you would have no way of knowing what specific methods were available. But with virtual methods there is no need to know. You simply invoke the generic virtual methods of your base class and you automatically get specific behaviour; all your derivatives do whatever they've been implemented to do, whether it is to invoke the base class method explicitly, or provide an override, or indeed both!
How do you know whether or not an object has energy?
Because it it working and can be turned on and off
How will you know that an object has kinetic?
The object would be moving.
How do you fix a runtime error 91?
the run-time error 131 would be caused by reasons as below: * Corrupted Office applications * Missing component in the applications * Damaged component in the applications * Incorrect system configuration * Corrupted Windows registry the easily way to fix runtime error 131 is to use a registry cleaner to clean up the windows registry.
What would be the density of an object that has a mass of 17 g?
You don't know the density if you only know the mass. You can figure it out if you also know the object's volume.
What must you know about an object to calculate its acceleration?
You might use Newton's Second Law. In this case, you would need to know (a) all forces that act on the object, and (b) the object's mass.
How would knowing that the distance that an object was dropped on a lever affect the distance that an item is launched?
Firstly, knowing this distance won't affect the launch. But the actual distance will, whether you know it or not. So, the greater this distance the more the speed of the object and so the greater the force produced on the lever.
Is my license suspended?
Only you would know whether it was suspended or not....
How would you know tha an object has inertia?
Anything that has mass has inertia.
Is my drivers license suspended?
Only you would know whether it was suspended or not....
Would an object with a density of 85gmL float sink or be suspended?
you should know
Why would you need to know how to find the perimeter of an object?
The lengths of each of its sides.
