Tbta va dt” kafedrasi mustaqil ish mavzu: Java Regex Topshirdi: 416-19-guruh talabasi Baxshullayev Baxrom Qabul qiladi: Oybek Jo’rayev Toshkent 2022 mundarija

Example
Matches
[ab]	a yoki b lardan bittasi ni oladi a|b ga ekvivalent
[ab] [qw]	birinchi harf a yoki b ikkinchi harf esa q yoki w
[a-d]	a dan d gachaga ixtiyoriy bitta belgi
^[^a-zA-Z]	ixtiyoriy harf bilan boshlansin
[a-zA-Z0-9]$	ixtiyoriy bitta harf yoki ixtiyoriy raqam bilan tugasin
[0-9]%	ixtoyoriy bitta raqam va undan keyin % belgisi

Short Regex Belgilar

Regex	Description
.	Har qanday belgi
\d	har qanday raqam [0-9]
\D	Har qanday raqam bo'lmagan, qisqartmasi [^0-9]
\s	Har qanday boʻshliq belgisi [\t\n\x0B\f\r]
\S	Boʻsh joy boʻlmagan har qanday belgi, [^\s] ning qisqartmasi
\w	Har qanday so'z belgisi [a-zA-Z_0-9]
\W	Har qanday so'z bo’lmagan belgisi [^\w] ning qisqartmasi
\b	So'z chegarasi
\B	So'z chegara emas [^\b] ning qisqartmasi

public static void main(String args[]){
System.out.println(Pattern.matches("\\d", "abc")); false
System.out.println(Pattern.matches("\\d", "1")); true
System.out.println(Pattern.matches("\\d", "4443"));
System.out.println(Pattern.matches("\\D+", "abc")); true
System.out.println(Pattern.matches("\\D", "1"));
System.out.println(Pattern.matches("\\D+", "a323abc")); System.out.println(Pattern.matches("\\D", "m"))
System.out.println(Pattern.matches("\\D*", "mak")); true
}
Darsni takrorlab olish uchun

Example	Matches
^[The]	Any string that starts with The ^[The], The
of despair$	Any string that ends with of despair
^abc$	A string that starts and ends with abc—an exact match
ab*	A string that contains a, followed by zero or more bs—ac, abc, or abbc
ab+	A string that contains a, followed by one or more bs—abc or abbc, but not ac
ab?	A string that contains a, followed by zero or one bs—ac or abc, but not abc
a?b+$	A string that ends with one or more bs, with or without a preceding a; for example, ab, abb, b, or bb, but not aab or aabb
ab{2}	A string that contains a, followed by exactly 2 bs—abb
ab{2,}	A string that contains a, followed by at least 2 bs—abb, abbbb, etc.
ab{3,5}	A string that contains a, followed by three to five bs—abbb, abbbb, or abbbbb
hi|hello	A string that contains either hi or hello
(b|cd)ef	A string that contains either bef or cdef
(a|b)*c	A string that has a sequence of alternating as and bs, ending with c
a.[0-9]	A string that contains a, followed by any character and a digit
^.{3}$	Any string of exactly three characters
[ab]	A string that contains either a or b; equivalent to a|b
[a-d]	A string that contains a lowercase a, b, c, or d; equivalent to a|b|c|d or [abcd]
^[a-zA-Z]	A string that starts with any letter, regardless of case
[0-9]%	A string that contains any single digit followed by a percent sign
[a-zA-Z0-9]$	A string that ends with a comma followed by any character

Foydalanilgan adabiyotlar:

1. 
   https://www.w3schools.com/java/java_regex.asp
   
2. 
   https://coderlessons.com/?s=java+regex
   
3. 
   https://coderlessons.com/tutorials/java-tekhnologii/izuchite-java-regex/java-regex-interfeis-matchresult