Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs yes if every character is a digit 0-9. Ex: If the input is: 1995 the output is: yes Ex: If the input is: 42,000 or any string with a non-integer character, the output is: no   user_string = input()

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter7: User-defined Simple Data Types, Namespaces, And The String Type
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Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs yes if every character is a digit 0-9.

Ex: If the input is:

1995

the output is:

yes

Ex: If the input is:

42,000

or any string with a non-integer character, the output is:

no

 

user_string = input()

Python please 

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