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
Answer:
Excel Help
Explanation:
Press F1 key to open the excel help window
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In psuedocode it would be:
length = input()
width = input()
area = length * width
print(area + " sq ft");
Take 4,000 times 12 to get 48,000. that’s how much A costs.
B is a little harder. you have to take (2,300+300)x12+(4*250). this equals $32,100
the correct answer would be B.
Answer:
True
Explanation:
Class string provides overloaded ==, !=, <, >, <=, and >= operators for string comparisons. Examples of method signatures of these operators are as follows:
bool operator== (const char* l, const string& r);
bool operator!= (const char* l, const string& r);
bool operator< (const char* l, const string& r);
bool operator> (const char* l, const string& r);
bool operator<= (const char* l, const string& r);
bool operator>= (const char* l, const string& r);