Question

Consider the following variables:

a. NumberOfComputersInaClassroom:

b. WifiPassword

c. ConvertFromKMtoMeters

d. CountryName

e. SubjectName

f. Price

g. county Tax

for each one of them:

a. Would you define them as a constant or data variable?

b. What data types would you choose for them?

Answer 1

a. NumberOfComputersInaClassroom:

The above name can be defined as a constant if we have the number in advance otherwise we will define a data variable.

The data type would be an integer because this is a number.

b. WifiPassword

The above name can be defined as a constant if we have the password in advance otherwise we will define a data variable.

The data type would be string because this is an array of characters.

c. ConvertFromKMtoMeters

The above name must define as a data variable because the value is calculated.

The data type would be float or double because the values in meter can be float or double.

d. CountryName

The above name can be defined as a data variable.

The data type would be string because this is an array of characters.

e. SubjectName

The above name can be defined as a data variable.

The data type would be string because this is an array of characters.

f. Price

The above name must define as a data variable.

The data type would be float or double because the price is a decimal value.

g. county Tax

The above name must define as a data variable.

The data type would be float or double or boolean.

If this is only yes or no option then it must be boolean type otherwise it would be float or double type.