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;publicclassRegexTester{publicstaticvoidmain(String[]args){Stringinput="Hello, World!";Stringregex="W.*d";Patternpattern=Pattern.compile(regex);Matchermatcher=pattern.matcher(input);if(matcher.find()){System.out.println("Match found: "+ma...
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...
publicstaticvoidmain(String[]args){TestRegextester=newTestRegex();// 测试几个字符串System.out.println(tester.isValid("Hello123"));// 输出: trueSystem.out.println(tester.isValid("Hello!123"));// 输出: falseSystem.out.println(tester.isValid("123456"));// 输出: trueSystem.out.println(tes...
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-...
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....
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...
util.regex.Pattern$GroupCurly.match0(Pattern.java:4487) at java.util.regex.Pattern$GroupCurly.match(Pattern.java:4407) at java.util.regex.Pattern$Curly.match0(Pattern.java:4274) at java.util.regex.Pattern$Curly.match(Pattern.java:4236) at java.util.regex.Pattern$GroupHead.match(Pattern.java:...
我已经在https://www.freeformatter.com/java-regex-tester.html测试过了因此,如果有人可以为此发布 Java 解决方案,我将不胜感激。下面是我到目前为止的一些 Groovy 代码。我缺少的是如何正确替换上面解释的。String source = 'Logger.getInstance(JdkUtil.forceInit(RtpRuleEngineCompiledImpl.class))' String reg...