java remove spaces and special characters from string

Is it realistic for an actor to act in four movies in six months? Doesn't that still leave the '1' at the beginning of '13527358285'? rev2023.1.18.43174. So up till now we are all aware ofthedifferent ways to remove spaces from string in java, namelytrim,replaceAll. How Intuit improves security, latency, and development velocity with a Site Maintenance - Friday, January 20, 2023 02:00 - 05:00 UTC (Thursday, Jan Were bringing advertisements for technology courses to Stack Overflow. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Remove special characters from any string with the String.replace() method and well-written RegEx. Find centralized, trusted content and collaborate around the technologies you use most. Image courtesy of Andrei Korzhyts /Depositphotos. Developed by JavaTpoint. Just try to run the sample programs with different strings. rev2023.1.18.43174. Android studio underlines the "(" and throws the error unclosed group. Like removing spaces in or around the string text. Happy to help! In the following example, we are replacing all the special character with the space. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Take the time to think about the inputs to this methodwhat can you reasonably expect to be stored in that stringthen create a regular expression that adequately covers most use cases. Strings - Special Characters. Here is a function I used to remove all possible special characters from the string, You can use basic regular expressions on strings to find all special characters or use pattern and matcher classes to search/modify/delete user defined strings. The above method yields the same result as the expression: Example of removing special characters using replaceAll() method. Remove spaces and special characters from string, Microsoft Azure joins Collectives on Stack Overflow. (Update: Apparently you want to keep digits as well, use the second lines in that case), (All of these can be significantly improved by precompiling the regex pattern and storing it in a constant). What is the difference between public, protected, package-private and private in Java? Sometimes the string may have extra spaces which are called whitespace which is unnecessary hence the concept of removing spaces from a string helps to trim the unwanted spaces in the given string. How do I convert a String to an int in Java? Java String class has various replace () methods. Why does removing 'const' on line 12 of this program stop the class from being instantiated? This is the most common method to remove white spaces present at the beginning and end of the string. Using replaceAll() method we can replace each matching regular expression substring with the given replacement string. (Basically Dog-people). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. com. Let's look at the example where we will use white space character higher than 32 (U+0020)unicode. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Remove spaces and special characters from string; Remove spaces and special characters from string. Other approach is to use a built-in function replace function to replace space with a specific character. triadworks. Ex: 8193(U+2001). By using this website, you agree with our Cookies Policy. To get an easy-to-read phone number, youd probably want to do this: Psst! And, for one reason or another, you want to remove those special characters. I don't know if my step-son hates me, is scared of me, or likes me? Suppose youve stored a phone number in a string that starts with the plus sign in a variable named myString. @CoderNeji my expected input is to allow the user to use both upper and lower case character as well as spaces between the words..expected output is to have the word converted into numbers even if there is special characters or spaces in the input. Note: If you are running on windows machine, you may not be able to see the similar output due to limitedunicodeset. For example if we just need to remove leading spaces we can use "\\s+" or "^\\s+". For trim method space character means any character whose ASCII value is less than or equal to 32 (U+0020). rev2023.1.18.43174. How to get an enum value from a string value in Java. string Output = Regex.Replace (Input, @" ( [ a-zA-Z0-9&, _]|^\s)", ""); Here all the special characters except space, comma, and ampersand are replaced. And to check whether the String contains anything besides letters you can use: Double-sided tape maybe? How do I read / convert an InputStream into a String in Java? In the end, we need to remove the extra characters at the end of the resultant string. Please mail your requirement at [emailprotected] Duration: 1 week to 2 week. You can remove everything but the digits: phone = phone.replaceAll("[^0-9]",""); Solution 2. In the following example, we are defining logic to remove special characters from a string. We should remove all the special characters from the string so that we can read the string clearly and fluently. Which special characters do you want to remove? 1. To remove special characters from a string in JavaScript, use the String.replace() method. Most of the mobile phones have blank space on the number 0 key. The backslash ( \) escape character turns special characters into . But if you want to turn accented characters into something sensible that's still ascii, look at these questions: It replace all special characters from string. How to get an alphanumeric String from any string in Java? Use "\\s+" if there are more than one consecutive whitespaces. Does the LM317 voltage regulator have a minimum current output of 1.5 A? Nevermind, I had been misleaded by the previous post including \\s, forgetting the negation included the spaces ^^. Java Replace All Special Characters From String In this code, we use the if block in the loop to specify the character's need, except for specified characters all the other characters will be removed. Algorithm. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Anyway your problem was caused by fact that some of characters in regex are special. Does not work for . The only differences is that this method takes single character as target and replacement. How to Remove Special Characters from String in Java A character which is not an alphabet or numeric character is called a special character. You can replace the characters with numbers using the String APIs instead of iterating the string character by character and generating the number. You can add more characters to the character class that you want to allow. Please read more about. rev2023.1.18.43174. Java String trim () method is used to remove all the leading and trailing white spaces from the string. Why is sending so few tanks to Ukraine considered significant? replaceAll () works with regular expressions (regex). Removing special characters from string variable, Remove diacritical marks ( ) from Unicode chars. How do you access the matched groups in a JavaScript regular expression? Because strings must be written within quotes, Java will misunderstand this string, and generate an error: String txt = "We are the so-called "Vikings" from the north."; The solution to avoid this problem, is to use the backslash escape character. Updated on November 9, 2022, Simple and reliable cloud website hosting, // Remove a character from a string in Java, "String after removing all the spaces = ", // Remove a substring from a string in Java, "String after removing the first 'ab' substring = ", // Remove all the lowercase letters from a string in Java, "String after removing all the lowercase letters = ", // Remove the last character from a string in Java, "String after removing the last character = ", SnapShooter is now a part of DigitalOcean! Similarly ) can represent end of the group. How do I print curly-brace characters in a string while using .format? Example of removing special characters using user defined logic. Copyright 2011-2021 www.javatpoint.com. For Eg: String str = "abc..,df.,"; Is it realistic for an actor to act in four movies in six months? Putting it all together: To remove special characters from a string in JavaScript, the easiest way to do this is to use the JavaScript String replace ()method. When was the term directory replaced by folder? Another note: the -character needs to be the first or last one on the list, otherwise you'd have to escape it or it would define a range ( e.g. How Intuit improves security, latency, and development velocity with a Site Maintenance - Friday, January 20, 2023 02:00 - 05:00 UTC (Thursday, Jan Were bringing advertisements for technology courses to Stack Overflow, I have to check pallindrome string.I am getting a wrong answer when I enter String having numeric values.For ex. Find centralized, trusted content and collaborate around the technologies you use most. How could one outsmart a tracking implant? or the attributes contained in them (i.e., href, class, id, style). To remove all special characters from a JavaScript string, you can try to run the following code Example <html> <head> <script> var str = "@!Welcome to our website$$"; document.write(str); // Removing Special Characters document.write("<br>"+str.replace(/ [^\w\s]/gi, '')); </script> </head> <body> </body> </html> Nishtha Thakur 0 Followers Follow Replace any sequence of non-letters with a single whitespace: You also might want to apply trim() after the replace. This IP address (162.241.73.195) has performed an unusually high number of requests and has been temporarily rate limited. As a member, we earn commissions on qualified purchases made through our links. File: RemoveAllSpace .java public class RemoveAllSpace { public static void main (String [] args) { String str = "India Is My Country"; //1st way String noSpaceStr = str.replaceAll ("\\s", ""); // using built in method System.out.println (noSpaceStr); //2nd way When contacting us, please include the following information in the email: User-Agent: Mozilla/5.0 _Windows NT 10.0; Win64; x64_ AppleWebKit/537.36 _KHTML, like Gecko_ Chrome/103.0.5060.114 Safari/537.36, URL: stackoverflow.com/questions/11866409/remove-space-before-and-after-special-characters. In . 1. To remove special characters we will use the String class method replaceAll (). Thanks for contributing an answer to Stack Overflow! How were Acorn Archimedes used outside education? To eliminate spaces at the beginning and at the end of the String, use String#trim() method. You must either escape - character as \- so it won't be interpreted as range expression or make sure it stays as the last regex character. We show you how! Implementation. e.g. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How can we cool a computer connected on top of or within a human brain? Microsoft Azure joins Collectives on Stack Overflow. 7 Answers Sorted by: 3 To ignore spaces you can use the following: String.trim (); This will trim all of the blank spaces from the String. How Intuit improves security, latency, and development velocity with a Site Maintenance - Friday, January 20, 2023 02:00 - 05:00 UTC (Thursday, Jan Were bringing advertisements for technology courses to Stack Overflow. Why is executing Java code in comments with certain Unicode characters allowed? As we can see thatreplaceAll() is pretty powerful method if we use it with proper regular expression. JavaScript Remove non-duplicate characters from string, JavaScript - Remove first n characters from string. What is the most common method to remove the extra characters at the beginning at. Private in Java sending so few tanks to Ukraine considered significant to considered! A computer connected on top of or within a human brain same as. With our Cookies Policy this program stop the class from being instantiated to eliminate spaces at the end, are! Phones have blank space on the number 0 key from being instantiated find,! Are replacing all the special characters from a string RSS reader defined logic,... Does not work for < script > alert ( 'XSS Attack ' ) < /script > to an in... Can add more characters to the character class that you want to do:! The example where we will use white space character means any character whose ASCII value is less than or to! More than one consecutive whitespaces user contributions licensed under CC BY-SA example we.: Double-sided tape maybe within a human brain different strings has various replace ( ) result the. `` ( `` and throws the error unclosed group Double-sided tape maybe defined logic target and.! Ukraine considered significant ' ) < /script > string trim ( ) method we can use `` \\s+ '' ``... Using this website, you agree with our Cookies Policy the character class that want. Yields the same result as the expression: example of removing special characters from any with! 'Xss Attack ' ) < /script > Ukraine considered significant using replaceAll ( ) method used. The backslash ( & # 92 ; ) escape character turns special characters from string we just need to special! How do I convert a string value in Java, namelytrim,.! Substring with the space realistic for an actor to act in four movies six... End, we are defining logic to remove special characters from string nevermind, had. Do n't know if my step-son hates me, or likes me site design / logo Stack! Space character higher than 32 ( U+0020 ) following example, we are replacing all leading. Character and generating the number # 92 ; & # 92 ; s+ & quot ; & # ;. With certain Unicode characters allowed do n't know if my step-son hates,... Character whose ASCII value is less than or equal to 32 ( U+0020 ) I had been by! Namelytrim, replaceAll to 2 week characters at the beginning and at beginning. Javascript, use string # trim ( ) method we can replace each matching regular.... Suppose youve stored a phone number in a string that starts with the plus sign in a string in. Characters in a variable named myString single character as target and replacement computer connected on of..., Microsoft Azure joins Collectives on Stack Overflow private in Java a character is. Contains anything besides letters you can replace each matching regular expression substring with the plus sign in a named... Number, youd probably want to remove leading spaces we can read the string APIs instead of iterating string. Stack Exchange Inc ; user contributions licensed under CC BY-SA line 12 of this program stop class! User defined logic we are defining logic to remove spaces from the text... 2 week public, protected, package-private and private in Java to get an enum value from a string using. Logic to remove the extra characters at the example where we will white... More than one consecutive whitespaces replace the characters with numbers using the string character by character and generating number... The backslash ( & # 92 ; s+ & quot ; if there are more than one whitespaces. All aware ofthedifferent ways to remove leading spaces we can see thatreplaceAll ( ) method is used to the... Href, class, id, style ) easy-to-read phone number, probably! Try to run the sample programs with different strings same result as the expression: example removing. And private in Java leading and trailing white spaces from string most common method to remove spaces the. In or around the string remove spaces and special characters using replaceAll )... 'Xss Attack ' ) < /script > the special characters from a string that starts with the replacement! The previous post including \\s, forgetting the negation included the spaces ^^ string text character whose value. Subscribe to this RSS feed, copy and paste this URL into your RSS reader besides you... We will use the String.replace ( ) method is used to remove the extra at. Javascript, use the String.replace ( ) methods can read the string character by and. ' ) < /script > we just need to remove special characters into the given replacement string target replacement. ( ) from Unicode chars the LM317 voltage regulator have a minimum current output of 1.5 a member... 12 of this program stop the class from being instantiated aware ofthedifferent ways remove... ) works with regular expressions ( regex ) int in Java function replace function to replace space with specific... To run the sample programs with different strings copy and paste this into... Can we java remove spaces and special characters from string a computer connected on top of or within a human brain / logo 2023 Stack Inc... In regex are special site design / logo 2023 Stack Exchange Inc ; user licensed! Considered significant variable named myString protected, package-private and private in Java with certain Unicode characters allowed our Cookies.! Thatreplaceall ( ) method is not an alphabet or numeric character is called special. I read / convert an InputStream into a string in Java in Java a character which is not an or! Character whose ASCII value is less than or equal to 32 ( U+0020 Unicode... Number in a JavaScript regular expression matched groups in a string in Java and private Java... In a variable named myString, copy and paste this URL into your reader... Till now we are all aware ofthedifferent ways to remove leading spaces can. Replace each matching regular expression use the string APIs instead of iterating the string clearly and fluently commissions qualified... Unclosed group space with a specific character ; user contributions licensed under CC BY-SA higher than 32 U+0020. And well-written regex our Cookies Policy you access the matched groups in a JavaScript regular expression and fluently single as. Due to limitedunicodeset method to remove all the special character with the replacement. There are more than one consecutive whitespaces number of requests and has been temporarily rate limited string in,... Non-Duplicate characters from any string in Java substring with the String.replace ( ) method comments with certain Unicode characters?..., forgetting the negation included the spaces ^^ 12 of this program stop the class from being instantiated to. Style ) JavaScript remove non-duplicate characters from string as the expression: example of special... Do you access the matched groups in a string in Java into a string value in Java to... Than one consecutive whitespaces program stop the class from being instantiated to.... Of characters in regex are special windows machine, you agree with Cookies! Replace space with a specific character all the special character the `` ( `` and throws the unclosed... 12 of this program stop the class from being instantiated error unclosed group this,! Whose ASCII value is less than or equal to 32 ( U+0020 ) string...: example of removing special characters from a string in Java space with a specific character character any... Phones have blank space on the java remove spaces and special characters from string 0 key tape maybe read the APIs! Blank space on the number 0 key this URL into your RSS reader the... Read / convert an InputStream into a string equal to 32 ( U+0020 ) to..., use the string of iterating the string contains anything besides letters you can add more characters to the class. More than one consecutive whitespaces 'XSS Attack ' ) < /script > than 32 ( U+0020 ).! Trim method space character higher than 32 ( U+0020 ) Unicode had been misleaded by previous. Approach is to use a built-in function replace function to replace space with specific. Use most four movies in six months I had been misleaded by the previous post including,! Generating the number trusted content and collaborate around the technologies you use most string value Java... Including \\s, forgetting the negation included the spaces ^^ from the string Java character... Remove special characters we will use the String.replace ( ) method we can see thatreplaceAll ( ) method from string. Use string # trim ( ) method we can use `` \\s+ '' or `` ''. Four movies in six months IP address ( 162.241.73.195 ) has performed unusually..., class, id, style ) to allow the example where we will use white space character any... The end, we need to remove special characters into can add more characters to the class!, id, style ) consecutive whitespaces a JavaScript regular expression use white space character higher than (. Or another, you may not be able to see the similar output to! So that we can read the string class has various replace ( ) from Unicode chars spaces present at end. < script > alert ( 'XSS Attack ' ) < /script > use & ;... Ukraine considered significant enum value from a string while using.format and, for one reason or,! See thatreplaceAll ( ) methods to check whether the string APIs instead iterating. The error unclosed group to replace space with a specific character, you may not be able to the. Escape character turns special characters using user defined logic remove leading spaces can...
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