创建一个字符串变量来存储原始文本。 StringoriginalText="Hello, world! This is a test text with special characters: $%^&*"; 1. 使用正则表达式来查找特殊字符。在Java中,我们可以使用replaceAll()方法来替换特殊字符。 StringspecialChars=originalText.replaceAll("[^a-zA-Z0-9]",""); 1. 这里的[^a...
publicclassStringUtil{publicstaticStringreplaceSpecialCharacters(StringoriginalString){returnoriginalString.replaceAll("[\\s\\n]","");}publicstaticvoidmain(String[]args){StringoriginalString="Hello, \nworld!";StringreplacedString=StringUtil.replaceSpecialCharacters(originalString);System.out.println("Original ...
Replaces the first substring of this string that matches the given regular expression with the given replacement. C# [Android.Runtime.Register("replaceFirst","(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;","")]publicstringReplaceFirst(stringregex,stringreplacement); ...
Stringstring="how to do in java";StringupdatedString=string.replaceFirst("\\s","-");System.out.println(updatedString);//how-to do in java 3. Escaping Special Characters with Double Backslash Although we can pass the regex as a substring pattern to match, the original string may contain s...
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. ...
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If you need to match substring containing these metacharacters, you can either escape these characters using\or use thereplace()method. // Program to replace the + characterclassMain{publicstaticvoidmain(String[] args){ String str1 ="+a-+b";// replace "+" with "#" using replaceAll()//...
3 How do I replace a multiple sets of characters with a single character 1 How to replace a 1 or more charceters in string with other characters? 1 How to replace one characters with two possible characters in a string 0 Replace multiple characters in a string in Java 0...
returnreplacedString; 1. 4. 完整代码示例 下面是整个代码示例的完整实现: publicclassStringReplaceExample{publicstaticvoidmain(String[]args){StringinputString="This is a string with special characters.";StringspecialChars="@#*";StringreplacementChar="-";StringreplacedString=replaceSpecialCharacters(inputStr...