Java正则表达式posix类空白示例 Java正则表达式posix类打印示例 Java正则表达式posix类xdigit示例 Java正则表达式posix类空白示例 package com.codingdict; import java.util.regex.Matcher; import java.util.regex.Pattern; public class PosixCharacterClassDemo { private static final String REGEX = "\\p{Blank}"; private static final String INPUT = "Bb12\tc!"; public static void main(String[] args) { // create a pattern Pattern pattern = Pattern.compile(REGEX); // get a matcher object Matcher matcher = pattern.matcher(INPUT); while(matcher.find()) { //Prints the start index of the match. System.out.println("Match String start(): "+matcher.start()); } } } Java正则表达式posix类打印示例 Java正则表达式posix类xdigit示例