Java regex Archives - W3schools

JavaScript math sqrt() method

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The JavaScript math sqrt() method is used to get the square root of a number.
Syntax:

Math.sqrt(n)

Parameters
n: It represents the number whose square root have … Read More

java regex pattern validate html tag

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Regular expression html tag pattern

<("[^"]*"|'[^']*'|[^'">])*>

This regular expression refers to a pattern which start with an … Read More

java regex pattern validate date

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Regular expression date pattern

(0?[1-9]|[12][0-9]|3[01])

java regex pattern validate 24 hours format

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Regular expression time in 24 hours format pattern

([01]?[0-9]|2[0-3]):

java regex pattern validate 12 hours format

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Regular expression time in 12 hours format pattern

(1[012]|[1-9]):[0-5][

java regex pattern validate ip address

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Regular expressions

Regular expressions represents a sequence of symbols and characters expressing a string or pattern to be searched for within a longer piece of text. The … Read More

java regex pattern validate image file extension

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Regular expression image file extension pattern

([^\s]+(\.(?i)(jpg|png|gif|bmp)

java regex pattern validate hex code

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Regular expression hex code pattern

#([A-Fa-f0-9]{6}|[A-Fa-f0-

java regex pattern validate password

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Regular expression password pattern

((?=.*\d)(?=.*[a-z])(?=.*[A

java regex pattern validate email

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Regular expression email pattern

^[_A-Za-z0-9-\+]+(\.[_A-Za-z0-