Create a function that will test if a string is a valid PIN or not via a regular expression. A valid PIN has: • Exactly 4 or 6 characters. • Only numeric characters (0-9). • No whitespace. Examples validate("121317") validate("1234") → true validate("45135") validate("89abc1") false validate("900876") → true validate(" 4983") → false → true → false

Create a function that will test if a string is a valid PIN or not via a regular expression. A valid PIN has: • Exactly 4 or 6 characters. • Only numeric characters (0-9). • No whitespace. Examples validate("121317") validate("1234") → true validate("45135") validate("89abc1") false validate("900876") → true validate(" 4983") → false → true → false

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: Description A researcher is analyzing DNA. A DNA can be represented as a string composed of the…

A: Check further steps for the answer :

Q: TODO #2: Invoke the gaussian() function, which accepts x_values, mu, and sig. Save the results in…

A: you can create a function to replicate gaussian formula and return output

Q: Write a program continuously asks the user to enter a sentence until they type "-999".

A: The following is the required python program #the function definition for uppercasedef…

Q: Create aC++ function named countWords that counts the number of words in the current string and…

A: Given: Create aC++ function named countWords that counts the number of words in the current string…

Q: get_column_choice(): this function will allow us to ask the players which pocket they want to grab…

A: Hey there, I am writing the required solution based on the above given question. Please do find the…

Q: One way to generate the value of Eulers number e is given by the formula Complete the code that…

A: we need to provide python code for the given scenarios

Q: Complete the get_sum_of_evens (lower_bound, upper_bound) function that takes two integer parameters,…

A: Here is the python code: See below step for code.

Q: Python question please include all steps and screenshot of code. Also please provide a docstring,…

A: Algorithm of the code:- 1. Start 2. Define a dictionary, months_to_seasons, that maps months…

Q: Fix the code in the code tab to pass this challenge (only syntax errors). Look at the examples below…

A: function sumArray(arr) { let sum = 0; for (let i = 0; i < arr.length; i++) { sum+= arr[i] }…

Q: Add this comment: # Ass 1: Part 3 Define two functions: The first one is called: YourIntAsString…

A: Code import java.util.*;public class Main{ String YourIntAsString(int x){ String arr[] =…

Q: Complete the check_character() function which has 2 parameters: A string, and a specified index. The…

A: Please find the answer below :

Q: ode a JavaScript function called isLeapYear() that accepts one integer value as its parameter and…

A: Algorithm: The algorithm to find leap year is: Start Initialise the variable year if ((0 == year %…

Q: Forms often allow a user to enter an integer. Write a program that takes in a string representing an…

A: Forms often allow a user to enter an integer. Write a program that takes in a string representing…

Q: The following function has errors. Locate as many errors as you can. void area(int length = 30, int…

A: Correction Explanation: The argument length should be declared inside the function body or at the…

Q: ete the function that calculates the sum of the first n+1 terms of the geometric series a, ar,…

A: Please find the answer below :

Q: Complete the function that calculates the sum of the first n+1 terms of the geometric series a, ar,…

Q: Topics: User-defined functions, list, string, docstring Problem Statement: This program finds the…

A: 1) Below is program to finds the unique letters from a given string and prints the unique letters…

Q: 2. A password is called STRONG if it holds all of the following properties: (a) It has at least 8…

A: Hello student The answer will be in next step :-

Question

Create a function that will test if a string is a valid
PIN or not via a regular expression.
A valid PIN has:
Exactly 4 or 6 characters.
Only numeric characters (0-9).
• No whitespace.
Examples
validate("121317") → true
validate("1234") → true
validate("45135") → false
validate("89abc1") → false
validate("900876")
→ true
validate(" 4983") false

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Complete the function that calculates the sum of the first n+1 terms of the geometric series a, ar, ar² ar³, art Note that the series begins with a and the last term is ar", in total there are n+1 terms. # complete the function given the variables a,r,n and return the value as series_sum. def sum geometric_series (a,r,n): # YOUR CODE HERE return series_sum ... arr print (sum_geometric_series (4.0, 5, 10))
Don't copy ASAP
The following functions are all intended to check whether a string representing a dna sequence contains any characters that are not 'a','c','g','t', 'A', 'C', 'G', or 'T'. At least some of these functions are wrong. Which ones are correct? A) def valid_dna1(dna): for c in dna: if c in 'acgtACGT': return True else: return False B) def valid_dna3(dna): for c in dna: flag = c in 'acgtACGT' return flag C) def valid_dna4(dna): for c in dna: if not c in 'acgtACGT': return False return True -------------------------------------------------------------------------------------------------------------------------------------------------------- valid_dna1 only valid_dna4 only None of them. valid_dna1, and valid_dna4 only
is an operator which can be used for checking if two values are the same.
Complete the Funnyville High School registration program where user is prompted for her full name and the program generates email id and temporary password. Sample run: generate_EmailID: This function takes two arguments: the user’s first name and last name and creates and returns the email id as a string by using these rules: The email id is all lower case. email id is of the form “last.first@fhs.edu”. e.g. For "John Doe" it will be "doe.john@fhs.edu". See sample runs above. generate_Password: This function takes two arguments: the user’s first name and last name and generates and returns a temporary password as a string by using these rules. Assume that user's first and last names have at least 2 letters. The temporary password starts with the first 2 letters of the first name, made lower case. followed by a number which is the sum of the lengths of the first and last name (For example this number will be 7 for "John Doe" since length of "John" is 4 and length of "Doe" is…
The International Standard Book Number (ISBN) is a number that uniquely identifies a book. Publishers can buy or receive ISBNs from the International ISBN Agency. There are two types of ISBNs: ISBN-13 and ISBN-10, which are 10- and 13-digits long, respectively.ISBN-10 has a pattern, where the last digit can be found using the first 9. Additionally, ISBN-10 can also be used to calculate its ISBN-13 equivalent (and vice versa). Write two functions in ISBN.java. The main method is implemented for you so you can test your functions. Instructions on how to run this file to make use of the test.txt file are detailed below. calculateISBN10(int[] isbn) computes the last digit of the ISBN-10 number. The first 9 of the 10 digits of the ISBN will be passed to the function as the parameter isbn integer array of size 10. The last integer in the array will be -1. Your job is to calculate the last digit (called the check digit), and update the last index of the isbn array with the computed…
Learning Objectives: Python Programming Use loop over a stringReplace characters within a stringFunction (declaration and call)Write code in modular formInstructions Create a function only_chars that takes the line of text and returns the text line excluding the spaces, periods, exclamation points, or commas. Create a program that will read the input line, use the function, and then print the line, without spaces, periods, exclamation marks, or commas and their length. Ex: If the input is: Listen, Mr. Jones, calm down. the output is: ListenMrJonescalmdown21Do not forget if __name__ == "__main__" section!
hi can you explain these functions to me def encode(message):encode_dict = {'A': '.-', 'B': '-...', 'C': '-.-.','D': '-..', 'E': '.', 'F': '..-.','G': '--.', 'H': '....', 'I': '..','J': '.---', 'K': '-.-', 'L': '.-..','M': '--', 'N': '-.', 'O': '---','P': '.--.', 'Q': '--.-', 'R': '.-.','S': '...', 'T': '-', 'U': '..-','V': '...-', 'W': '.--', 'X': '-..-','Y': '-.--', 'Z': '--..', ' ': '.....'}encoded = ' '.join(encode_dict[i] for i in message.upper())return encodeddef decode(message):encode_dict = {'A': '.-', 'B': '-...', 'C': '-.-.','D': '-..', 'E': '.', 'F': '..-.','G': '--.', 'H': '....', 'I': '..','J': '.---', 'K': '-.-', 'L': '.-..','M': '--', 'N': '-.', 'O': '---','P': '.--.', 'Q': '--.-', 'R': '.-.','S': '...', 'T': '-', 'U': '..-','V': '...-', 'W': '.--', 'X': '-..-','Y': '-.--', 'Z': '--..', ' ': '.....'}decode_dict = {v: k for k, v in encode_dict.items()}decoded = ''.join(decode_dict[i] for i in message.split())return decodeddef process_lines(filename, mode):with…
X609: Magic Date A magic date is one when written in the following format, the month times the date equals the year e.g. 6/10/60. Write code that figures out if a user entered date is a magic date. The dates must be between 1 - 31, inclusive and the months between 1 - 12, inclusive. Let the user know whether they entered a magic date. If the input parameters are not valid, return false. Examples: magicDate(6, 10, 60) -> true magicDate(50, 12, 600) –> false
True or false: setInterval() executes a function repeatedly until the interval is cleared by clearInterval() using the ID returned by setInterval(). О а. True O b. False
C Programming Write function checkHorizontal to count how many discs of the opposing player would be flipped, it should do the following a. Return type integer b. Parameter list i. int rowii. int col iii. char board[ROW][COL] iv. char playerCharc. If the square to the left or right is a space, stop checking d. If the square to the left or right is the same character as the player’s character, save that it was a flank, stop checking e. If the square to the left or right is not the same character as the player’s character, count the disc f. If the counted discs is greater than zero AND the player found their own character, return the counted discs, otherwise return ZERO Write function checkVertical to count how many discs of the opposing player would be flipped, it should do the following a. Return type integer b. Parameter list i. int rowii. int col iii. char board[ROW][COL] iv. char playerCharc. If the square above or below is a space, stop checking d. If the square above or below is…
The International Standard Book Number (ISBN) is a number that uniquely identifies a book. Publishers can buy or receive ISBNs from the International ISBN Agency. There are two types of ISBNs: ISBN-13 and ISBN-10, which are 10- and 13-digits long, respectively.ISBN-10 has a pattern, where the last digit can be found using the first 9. Additionally, ISBN-10 can also be used to calculate its ISBN-13 equivalent (and vice versa). Write two functions in ISBN.java. The main method is implemented for you so you can test your functions. Instructions on how to run this file to make use of the test.txt file are detailed below. calculateISBN10(int[] isbn) computes the last digit of the ISBN-10 number. The first 9 of the 10 digits of the ISBN will be passed to the function as the parameter isbn integer array of size 10. The last integer in the array will be -1. Your job is to calculate the last digit (called the check digit), and update the last index of the isbn array with the computed…