Answer:
The correct answer is: Option d: Put Quotation marks around the string.
Explanation:
The names of things or places or cars are usually in the form of words or sentences. The words or sentences are stored in string datatype.
Quotation marks are used to deal with strings in programming languages.
Hence,
The correct answer is: Option d: Put Quotation marks around the string.
"Lithium ion" is used in your cellphone.
Answer:
D. Software Problem
Explanation:
It could be that the software is bootlooping which will power on and off until its fixed.
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
