public class SpecialCharacterMatching { public static void main(String[] args) { String text = "This is a text with special characters: !@#$%^&*()_+-={}[]:\";',.?/\\|"; String regex = "[!@#\\$%\\^&*()_+\\-=\\{\\}\\[\\]:\";'\\,\\.\\?/\\\|]"; Pattern ...
import java.util.regex.Pattern; public class SpecialCharacterMatching { public static void main(String[] args) { String text = "This is a text with special characters: !@#$%^&*()_+-={}[]:\";',.?/\\|"; String regex = "[!@#\\$%\\^&*()_+\\-=\\{\\}\\[\\]:\";'\...
输入需要判断的字符串 StringinputStr="This is a string with special characters: @#$%"; 1. 编写正则表达式,例如判断是否包含特殊字符: Stringregex=".*[^a-zA-Z0-9 ].*"; 1. 注释:该正则表达式用于匹配任何非字母、数字以及空格的字符。 进行匹配判断: booleancontainsSpecialCharacter=inputStr.matches(r...
importjava.util.regex.Pattern;publicclassSpecialCharacterChecker{privatestaticfinalStringREGEX="[a-zA-Z0-9]+";publicstaticbooleancontainsSpecialCharacter(Stringinput){if(input==null||input.isEmpty()){returnfalse;// 空字符串或null不含特殊字符}Patternpattern=Pattern.compile(REGEX);return!pattern.matcher(...
import java.util.regex.Pattern; public class SpecialCharacterMatching { public static void main(String[] args) { String text = "This is a text with special characters: !@#$%^&*()_+-={}[]:\";',.?/\\|"; String regex = "[!@#\\$%\\^&*()_+\\-=\\{\\}\\[\\]:\";'\...
Twelve tokens, formed from ASCII characters, are the separators (punctuators). ( ) { } [ ] ; , . ... @ :: 也可以使用下面的方法进行判断 importjava.util.regex.Matcher;importjava.util.regex.Pattern;publicclassCheckSpecialCharacterString {/*** Check whether the each character of String is ...
Query strings (Blah=1&Name=Bob) often need to be escaped as well. If the query string contains special characters, it will need to be "URL encoded". (See the javadoc for theURLEncoderclass for further information.) This will ensure the query string conforms with valid HTTP. ...
字符串.istitle() 所有单词都是首字母大写，为真返回 Ture，否则返回 False。 字符串.isspace(...
Pattern.LITERAL- Special characters in the pattern will not have any special meaning and will be treated as ordinary characters when performing a search. Pattern.UNICODE_CASE- Use it together with theCASE_INSENSITIVEflag to also ignore the case of letters outside of the English alphabet ...
assertTrue(Pattern.compile(regex).matcher(validInput).matches()); } There are a few things we should point out regarding our regular expression. First, we’ve used positive lookahead (?=X) for every group of characters. That means that we expectXto be found after the beginning of the Str...