Validate cron schedule string

Published on Tue Mar 01 2022

Validates a string for valid cron schedules such as 10:45, 11:15 etc.

Additional matching regexes for
Validate cron schedule string

Validate cron schedule string

Validates a string for valid cron schedules such as 10:45, 11:15 etc.

Validates argentinian postal code

Validates the two valid postal codes in Argentina

email check

checks the email string for valid

Valid RGB color value

Pattern for matching actually valid RGB values. - validate separator (mixing spaces and commas between values is not valid) - validate if comma is used as separator if alpha channel is set - validate units (mixing percentage with integers is not valid) - extract `r`, `g`, `b`, `a`, `separator` and `unit` with named groups

Email Address Matching

Picks out valid email addresses from string.

CronSchedule Verifier

Verifies a cron schedule pattern such as: 10:45 or multiple times such as: 11:00 22:10 23:15

Alien username

Input Format The first line contains a single integer, , denoting the number of usernames. Each line of the subsequent lines contains a string denoting an alien username to validate. Constraints Output Format Iterate through each of the strings in order and determine whether or not each string is a valid alien username. If a username is a valid alien username, print VALID on a new line; otherwise, print INVALID. Sample Input 3 _0898989811abced_ _abce _09090909abcD0 Sample Output VALID INVALID INVALID Explanation We validate the following three usernames: _0898989811abced_ is valid as it satisfies the requirements specified above. Thus, we print VALID. _abce is invalid as the beginning _ is not followed by one or more digits. Thus, we print INVALID. _09090909abcD0 is invalid as the sequence of English alphabetic letters is immediately followed by a number. Thus, we print INVALID.

RFC3339 DateTime

Validates a RFC3339 DateTime format. Does not validates the Data

Check if the title ends in is alid or not in java using regex

testing patterns


() invalid, (k) valid, (kr123) valid. only () is invalid