Free online Java regular expression tester with cheatsheet and most common solutions to common problems
String regex = "\\b[a-zA-Z]{3}\\b";//\b是单词边界 String text = "Mr. Johnson had never been up in an aerophane before and he had read a lot about air accidents"; Pattern pattern = Pattern.compile(regex); Matcher matcher = pattern.matcher(text); while(matcher.find()){ System...
importjava.util.regex.Pattern;importjava.util.regex.Matcher;publicclassPhoneNumberValidator{publicstaticvoidmain(String[]args){StringphoneNumber="+86 138 0000 0000";Stringregex="^\\+\\d{1,3} \\d{3} \\d{4} \\d{4}$";Patternpattern=Pattern.compile(regex);Matchermatcher=pattern.matcher(phone...
publicStringreplaceFirst(Stringregex,Stringreplacement) 使用给定的 replacement 字符串替换此字符串匹配给定的正则表达式的第一个子字符串。 此方法调用的str.replaceFirst(regex,repl)形式产生与以下表达式完全相同的结果: Pattern.compile(regex).matcher(str).replaceFirst(repl) 参数:regex- 用来匹配此字符串的正则表达...
Set; import java.util.TreeSet; import java.util.Iterator; import java.util.regex.Pattern; import java.util.regex.Matcher; import java.util.regex.MatchResult; class RegexTester { public static void main(String args[]) { Scanner scanner = new Scanner(System.in); String regex = scanner....
步骤一:封装方法 1packagecom.zyt.regex;23importjava.util.regex.Matcher;4importjava.util.regex.Pattern;56//url验证7publicclassUrlReg {89publicString str =null;10publicString regEX =null;11ublicbooleanflag =false;121314publicbooleangetResult(){15//需要验证的字符串16//str = "https://yun.china-...
RegexTester：正则表达式生成工具 ShortURL：网址缩短工具 EscapeCharacter：转义字符 ZHConverter：字符串转换...
import java.util.regex.*; public class Tester { public static void main (String[] args) { String str = "sdfsdfsd23232323@baidu.com2323sdf@sdfs.comddd"; String reg = "([a-z0-9_\\.-]+)@([\\da-z\\.-]+)\\.([a-z\\.]{2,6})"; Pattern pattern = Pa...
importjava.util.regex.Pattern;publicclassRETester{publicstaticvoidmain(Stringarhs[]){StringregularExpression="([a-zA-Z]:)?(\\[a-zA-Z0-9_-]+)+\\?";Stringpath="D:\\directoryname\\testing\\abc.txt";Patternpattern=Pattern.compile(regularExpression);booleanisMatched=Pattern.matches(regularExpress...
import java.util.*; import java.util.regex.*; class Tester{ private static String get(String input, String tagName, String key){ String reg = "(?i)" + tagName + "[^>]*(" + key + ")[=\"\'\\s]+([^\"\']*)[\"\']?"; Pattern p = Pattern.compile(...