In Python, which of code listed below validates a postive float? A.) strMyNumber

Question

In Python, which of code listed below validates a postive float?

A.)
strMyNumber = input("Enter a positive float: ")

while flag == False:

     try:
     fltMyNumber = float(strMyNumber)
     except ValueError:
     strMyNumber = input("Sorry you did not enter a valid number. Please try again: ")

     #end try block

#end loop

B.)
strMyNumber = input("Enter a positive float: ")

while flag == True:

     try:
     fltMyNumber = float(strMyNumber)
     except ValueError:
     strMyNumber = input("Sorry you did not enter a valid number. Please try again: ")

     #end try block

#end loop

C.)
while flag == True:

     if strMyNumber.isdigit():
     fltMyNumber = float(strMyNumber)
     flag = True

#end loop

D.

strMyNumber = input("Enter a positive float: ")

while flag == False:

     try:
     fltMyNumber = float(strMyNumber)
     if fltMyNumber >= 0:
     flag = True
     else:
     #ask user for another value
     strMyNumber = input("Sorry you did not enter a valid number. Please try again: ")

     #end if
     except ValueError:
     strMyNumber = input("Sorry you did not enter a valid number. Please try again: ")

     #end try block

#end loop

A.)
strMyNumber = input("Enter a positive float: ")

while flag == False:

     try:
     fltMyNumber = float(strMyNumber)
     except ValueError:
     strMyNumber = input("Sorry you did not enter a valid number. Please try again: ")

     #end try block

#end loop

Explanation / Answer

Answer:D

D.

strMyNumber = input("Enter a positive float: ")

while flag == False:

     try:
     fltMyNumber = float(strMyNumber)
     if fltMyNumber >= 0:
     flag = True
     else:
     #ask user for another value
     strMyNumber = input("Sorry you did not enter a valid number. Please try again: ")

     #end if
     except ValueError:
     strMyNumber = input("Sorry you did not enter a valid number. Please try again: ")

     #end try block

#end loop

Explanation:

1)in python code if we first check that the given float value is >(greater than) or = to zero
2)if value >= 0 then
3)we received the value please check it it can be >(greater than) zero.
4)if so throw another an exception,after that
5)we can be place a while loop so program can ve run continues repeating until valid answer is received from the end user, and tests for the right input inside it

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.