例一:匹配验证-验证Email是否正确 public static void main(String[] args) { // 要验证的字符串 String str = "service@"; // 邮箱验证规则 String regEx = "[a-zA-Z_]{1,}[0-9]{0,}@(([a-zA-z0-9]-*){1,}\\.){1,3}[a-zA-z\\-]{1,}"; // 编译正则表达式 Pattern pattern = ...
importjava.util.regex.Matcher;importjava.util.regex.Pattern;publicclassEmailValidator{privatestaticfinalStringEMAIL_PATTERN="^[a-zA-Z0-9_]+(\\.?[a-zA-Z0-9_]+)*@[a-zA-Z0-9]+(\\.[a-zA-Z0-9]+)+$";privatestaticPatternpattern;privatestaticMatchermatcher;publicstaticbooleanvalidate(Stringema...
实际情况中要是比较复杂的情况,可能Pattern.MULTILINE模式和Pattern.DOTAL模式需要同时指定来匹配多行,代码如下, import java.util.regex.Pattern; import java.util.regex.Matcher; public class Main { public static void main(String[] args) { Pattern p1 = Pattern.compile("^a.*b$"); //输出false Syste...
实际情况中要是比较复杂的情况,可能Pattern.MULTILINE模式和Pattern.DOTAL模式需要同时指定来匹配多行,代码如下, import java.util.regex.Pattern; import java.util.regex.Matcher; public class Main { public static void main(String[] args) { Pattern p1 = Pattern.compile("^a.*b$"); //输出false Syste...
例如:IP地址是否正确、从网页中揪出email地址(如垃圾邮件)、从网页中揪出链接等 涉及到的类:java.lang.String, java.util.regex.Pattern, java.util.regex.Matcher 例1:Pattern是模式,Matcher是与模式匹配后的结果。 典型的调用顺序是 compilematcher matches ...
import java.util.regex.Pattern; public class ForTest { public static void main(String[] args) { Pattern pattern = Pattern.compile("^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?(((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])...
Java.Util.Regex 組件: Mono.Android.dll 多載 展開資料表 PatternSyntaxException(IntPtr, JniHandleOwnership) 建立JNI 物件的 Managed 表示法時使用的建構函式;由運行時間呼叫。 PatternSyntaxException(String, String, Int32) 建構這個類別的新實例。
boolean b = Pattern.matches("a*b", "aaaaab"); </blockquote> is equivalent to the three statements above, though for repeated matches it is less efficient since it does not allow the compiled pattern to be reused. Instances of this class are immutable and are safe for use by multiple ...
本文主要介绍Java中正则表达式怎样匹配换行符(\r , ),从而实现多行匹配,实际上也就是Pattern.MULTILINE和Pattern.DOTALL的用法和区别。下面具体看一下。 原文地址: Java中正则表达式(regex)匹配多行(Pattern.MUL…
Pattern ClassReference Feedback DefinitionNamespace: Java.Util.Regex Assembly: Mono.Android.dll A compiled representation of a regular expression.C# Afrita [Android.Runtime.Register("java/util/regex/Pattern", DoNotGenerateAcw=true)] public sealed class Pattern : Java.Lang.Object, IDisposable, ...