In the image above, and based on how the question is worded, I believe I could argue why all are possible use cases of && (logical and operator) and || ( logical or operator )
The question is very broad in that it is asking what && and || are used for in conditional statements:
For ignoring a condition: I could ignore a condition where TWO conditionals are not the same:
If ( a == b ) && ( b == c )
{
I would argue that I am using this to ignore the condition where b == c
}
For testing multiple conditions: Arguably the same example above shows testing multiple conditions
All of the above ( just here for verbosity )
For filtering conditions: I feel like I could argue this case with the following:
// given a series of states: a, b, c
if ( ( a.running() || b.running() ) && ! c.running()
{
do something only when a OR b is running but c is not. Which seems like a case where we are “filtering” c out to only do something when a and/or b is running.
}
Granted I believe the actual answer is: For testing multiple conditions, but overall I think the verbage could use an adjustment to make the question more clear on what it is aiming to test ?
Anyways, thanks for my long winded comment/concern.
In this question it asks which is not a proper way to declare an array. Technically all of them are proper ways to define an array. They all compile just fine.
I think the wording here is quite confusing as in “technically” we could argue that
int array[6]; // Declared but not in initilized
int array[6] = {4,8, ... }; // Declared and initilized
int array[] = {4,8, ... }; // Declared and initilized - though likely a bit less helpful as the int array[] doesn't indicate the size of the array in its initilization.
So they are all a proper way to declare the array, and the none of these answer is phrased in such a way that it adds unnecessary double negatives into the question.
I believe that either the question should be rephrased, or the answer should be rephrased
which of the following statements is an improper way to declare an array in c++?
In which case the answers all make sense ( assuming that none of these is the correct answer )
which of the following statements is not a proper way to declare an array in c++?
In this case the answer should be rephrased from “None of these” to “All are correct”
But then again, this is just my opinion. Overall though while I have enjoyed other courses on this site, this one in particular has had a number of grammatical errors, and other phrasings similar to this one where I have had to spend the majority of my time just re-reading the question instead of just showing knowledge of the material.
