Answer:
The solution code is written in Python:
- def square(num):
- if type(num).__name__ == 'int':
- sq_num = num * num
- return sq_num
- else:
- return "Invalid input"
-
- print(square(5))
- print(square("Test"))
Explanation:
To ensure only certain type of operation can be applied on a input value, we can check the data type of the input value. For example, we define a function and name it as <em>square</em> which take one input number, <em>num </em>(Line 1).
Before the <em>num</em> can be squared, it goes through a validation mechanism in by setting an if condition (Line 2) to check if the data type of the input number is an integer,<em> int.</em> If so, the<em> num </em>will only be squared otherwise it return an error message (Line 6).
We can test our function by passing value of 5 and "Test" string. We will get program output:
25
Invalid input
Marina and Rita’s Cupcakes use the IMAP email protocol. It
is important since it stores copies of all the emails stored on the server.
To add, IMAP<span> (Internet Message Access Protocol) is a standard email
protocol that stores email messages on a mail server, but allows the end user
to view and manipulate the messages,</span>
Answer:
21212122121221212211212121212212121Explanation:
Answer:
1. True.
2. False.
3. True.
4. True.
Explanation:
Remember OR operator (||) gives false when both of it's operands are false. AND Operator (&&) gives false when even one of it's operator is false.
In first part we have
!(True || False) || True
=!True||True
=False||True
=True
In second part we have.
False && True && True
= False && True
=False.
In Third part
! True || (False || True)
=False || True
=True.
In fourth part
True || True && False
=True|| False
=True.
Answer:
The correct answer is letter "D": Some apps will work on different OS platforms, but many will not.
Explanation:
Devices using <em>Android, iOS, </em>and <em>Windows Mobile</em> Operating Systems (OS) use dedicated apps for each OS. OS providers reserve some of their key apps to the exclusive use of their devices which makes them different one from another and creates users having a bias on certain OS.
Thus, <em>if the manager of a company is looking for standardizing all mobile applications across different OS, that is unlikely to be possible since some apps are compatible while others are not. </em>
