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Questions tagged [replaceall]

The replaceAll() method in Java is used to replace parts of a string using a regular expression.

The replaceAll() method in Java is used to replace parts of a string using a regular expression.

Note that in most languages, including Java, the String object is immutable. In other words, you can't change it. If you want a slightly different string value then you have to create a second object. For that reason, replaceAll() does not actually change the string being searched, but rather returns a new string that is the result of the specified search and replace actions.

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Trying to replace and reversing the entire Alphabetical order in Java

I am trying to reverse the entire Alphabetical order A-Z --> Z-A. This is what I have so far. public class Program { public static voud main(String[] args) { String text = "Hi My name is Dave\n"; text = text.replaceAll("[a-z…
Parnak Dave
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Removing whitespaces from string and removing them from char array

I have an input that recieves a String in java: "a a" (50 characters total, 2 letters and 48 whitespaces) when i tried replace("\\s++",""); or replaceAll("\\s+",""); removes the whitespaces, but…
Luiz Andrade
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How can I remove specific special characters in java?

I'm beginner in Java and it's still very complicated to understand how a regex works. I don't know how to create a regex to check and remove some specific special characters from a string. "!@#$%¨&*()_-+={[}]º|\,.:;?/° (I need check and remove it…
F4bioo
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Could please let me know the Explanation s.replaceAll("\\S", " ")

String s="Swamy Application"; s=s.replaceAll("\\S"," "); system.out.println(s); Should return String but we are getting empty I need explanation What happening in \\S.
Swamy Botika
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String.replaceAll does not apply to any kind of characters

So what i've got is this simple method which should remove all characters except upper and lowercase letters and numbers from a string. public static String toSimple(String arg) //redurziert einen String auf Buchstaben und ganze Zahlen { String…
Felix Stiep
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Replacing multiple char from String with single space

I want to replace multiple character in given string with a single space. eg: He is a very very good boy, isn't he? Should be replaced to He is a very very good boy isn t he My code…
ra1vi2
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What is causing this StringIndexOutofBounds exception?

I have this code to find a palindrome below; I need to be able to remove all numbers, spaces, and punctuation from the user input String, so I've been using replaceAll. When I only had String input = str.toLowerCase(); and String newInput =…
Sarah Diri
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Remove special character \

I'm using Java, and I want to remove all the occurrences of \ from my string (something like http\:\/\/news.investors\/092115\-772034\-red\-hat\-tops\-16\-views\-beat.html ) I'm using replace all but I don't know how is the regular expression to do…
Matteo Amadei
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why Word.Application.Selection.Find.Execute does not work in footnote and endnote

why Word.Application.Selection.Find.Execute does not work in footnote and endnote? my code is: object wrap = WdFindWrap.wdFindContinue; object wdReplaceAll = WdReplace.wdReplaceAll; object text = findWhat; object replaceText = replaceWith; object…
Amir Niazi
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Replace substring with some math characters from String - java

I have a math expression looks like String st = "((3-(5-2))+(2*(5-1)))"; and I want to replaceAll (5-1) with 4 and after that replaceAll (2*4) with 8 and... I haven't problem with replacing (5-1) with 4 but when I received to (2*4), as it has * star…
Ehsan Solimo
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String replace with integer not working

I have been working on some Java code and I came across a really weird error, Im trying to replace a piece of string with an Integer. Added all kinds of debugs but I cant seem to find it out. private void executeMsg() { value =…
Bram
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Replace single " (quotation mark)

How can I replace a single quotation mark " in a String in Java? Not the word inside a quote.
André Mathisen
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Remove all numbers and "{" from a String Array

I am trying to remove all non numeric characters from the String Array as require to compare it with the list of numbers. The split works but I am not able to compare the two Sets for(String w:a1) { w=w.replaceAll("[^\\d.]", ""); …
ananymous59
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how to replace ' with " inside a String

I have a String containing: 'abc' 'abc' 'abc'. How can i use replaceAll, to produce: "abc" "abc" "abc" ? I tried using StringA=StringA.replaceAll(''','"');
Kumara
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ReplaceAll Method

I want to replace "\" with this "/" in my string. I am using method replaceAll for this. But it is giving me error. String filePath = "D:\pbx_u01\apache-tomcat-6.0.32\bin\uploadFiles\win.jpg"; String my_new_str = filePath.replaceAll("\\", "//");
Fahad Murtaza
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