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
Explanation:
Answer in the attached image...
hope it helps
Answer:we need some options or we can’t help you
Explanation:
Information technologies are unique not just because of their growing use in decision-making and knowledge management systems, important as that is. Their use has also yielded significant improvements in the efficiency of energy and materials use.
Answer:
B, D, E
Explanation:
B. Apexpages.standardsetcontroller controller=new
apexpages.standardsetcontroller(database.getquerylocator('select id from account'));
D. Apexpages.standardsetcontroller controller = new
apexpages.standardsetcontroller (database.getquerylocator([select id
from account])); and
E. Apexpages.standardsetcontroller controller = new
apexpages.standardsetcontroller (database.query('select id from
account'));
