package basic; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * 使用正则表达式 * * @Todo 正则表达式复杂的用法 * @author liu yuning * */ public class UsingRegex { public static void main(String[] args) { String regexSample = "\\w+"; String inputString = "123"; Pattern pattern = Pattern.compile(regexSample); Matcher matcher = pattern.matcher(inputString); System.out.println(matcher.matches()); } }