Java replace all non alphanumeric

Hi,

In Java how to replace all non alphanumeric characters with blank? Share me the best code for java replace all non alphanumeric.

Thanks

View Answers

March 29, 2011 at 11:36 AM

Hi,

You can use the replaceAll() function of String class in Java.

We will use the regular expression "[^a-zA-Z0-9]" for finding all non alphanumeric characters and then replace it with required character.

Following example show how to replace all non alphanumeric characters present in a Java String variable.

public class TestReplaceAllNonAlphanumeric 
{
    public static void main(String[] args) 
    {
    String s = "What is use of[]. What {} is used.";
    s = s.replaceAll("[^a-zA-Z0-9]", "");
    System.out.println(s);
    }
}

Thanks

Ads

Advertisements

java string replace all non digits
java string replace all non digits Hi, I am doing some processing on the text data. I have requirement to remove all the charaters from the data except the digits. How to replace all non digits in a string with some character

Java String : Replace All
Java String : Replace All This section defines how to replace all character with specified character without using system methods. Replace All method : You can replace all specific character in a given string with another character

find and replace in java
find and replace in java Need 'find and replace' function in Java to find special keyword in XMl such as @,#,!,%..and replace with their corresponding entities

how to get string after first occurence of alphanumeric char in java?
how to get string after first occurence of alphanumeric char in java? how to get string after first occurence of alphanumeric char in java For Example : String = "13(i),145afc34df,1ss,kk,90"; Required output : 13 (i

java replace dot with comma
java replace dot with comma Hi, How to replace dot with command in Java program? thanks Hi, Here is simple example for replacing the dot(.) with comma: package test.app; public class JavaStringExample

Replace
Replace Hi, I have two text files in two diff locatons.The text file like below using java program 1)a.txt 1 abc bangalore 2 def adfsdf 3 ghij asdfdsad 2)b.txt A B C Now i want output is like below

Non-virtual Methods in Java - java tutorials
The better way to achieve the non-virtual function in java is that make all...: #000000; } Non Virtual Methods in Java Lets see the concept of virtual... hierarchy. In Java programming language all the methods are virtual, i.e.

How to replace all occurrences of a string in JavaScript?
in JavaScript. There are many ways to replace all occurrences of a string in JavaScript... of replacing string in JavaScript. 1. Replace all occurrences with regular expression.... This class can also be used for find and replace process. In almost all

Learning Java for non programmers
Learning Java for non programmers - Learn Java from scratch If you are non... on all platforms. Java is wide choice of programming language for developing... of Java for non programmers to learn Java language from scratch

javascript regex validation alphanumeric
regex validation for alphanumeric? <html> <head> <title> alphanumeric validation using regex</title> <script type="text...}$/; if (pattern.test(name)) { alert(name +" has alphanumeric value

Alphanumeric Validation in JavaScript
Alphanumeric Validation in JavaScript In this tutorials we will discuss about alphanumeric validation in JavaScript. Sometimes it may occur when user have... to validate a form which can accept only character and digit in java Script

ereg_replace() and eregi_replace().
ereg_replace() and eregi_replace(). What is the difference between eregreplace() and eregireplace()? Hi friends, ereg_replace() is case sensitive like "Bharat"cannot be treated as "bharat"and eregi_replace

ModuleNotFoundError: No module named 'split-alphanumeric'
ModuleNotFoundError: No module named 'split-alphanumeric' Hi, My... named 'split-alphanumeric' How to remove the ModuleNotFoundError: No module named 'split-alphanumeric' error? Thanks Hi, In your

About search and replace contains of .doc or .docx file using java.
About search and replace contains of .doc or .docx file using java. Hi , I am trying to replace contents of ms.word document in .doc or .docx... any one tell me how could I replace them using java

Accessing non-static members through the main method in Java.
Accessing non-static members through the main method in Java. As an oop rule, a static method can have access only to static variables and static... in Java has access to non-static members (variables or methods) even though

java script to replace words starting and ending with tild(~) symbol in a text area with the word highlighted yellow.
java script to replace words starting and ending with tild(~) symbol in a text... requirement we have to replace all the occurence of such words and replace with highlighted text. for example: The script should findout all the occurence of the words

Making a Frame Non Resizable in Java
Making a Frame Non Resizable in Java ... non resizable. It means, disabling the maximize button of the frame... will be non-resizable otherwise frame will be resizable. The setResizable

Replace TEXT
Replace TEXT I have two text files in two diff locatons.The text file like below using java program 1)a.txt 1 abc bangalore 2 def adfsdf 3 ghij asdfdsad 2)b.txt A B C Now i want output is like below

Making a Frame Non Resizable in Java
Making a Frame Non Resizable in Java ... a frame non resizable. It means that the disabling the maximize button... then the frame will be non-resizable otherwise frame will be resizable

How to retrieve kernal memory details(paged and non-paged ) using SIGAR API in java program
How to retrieve kernal memory details(paged and non-paged ) using SIGAR API in java program I need to get all memory details of task manager(OS... and non-paged) and all as I indicated in image below.) I am using SIGAR API. I

non empty file
Java Delete non empty file f.delete() works when the file is empty.if a file be non empty how to delete it??? Please visit the following link: http://www.roseindia.net/tutorial/java/core/files

MySQL Replace
MySQL Replace MySQL Replace function finds and replaces the occurrences of specified string...: REPLACE( String_Text, String_FROM, String_TO); where String_Text

MySql find and replace string
MySql find and replace string How to find and replace string or special characters in MySql & PHP? Find and Replace String PHP $result = preg_replace('/\band\b/i', 'foo', $subject

ModuleNotFoundError: No module named 'replace'
ModuleNotFoundError: No module named 'replace' Hi, My Python... 'replace' How to remove the ModuleNotFoundError: No module named 'replace... to install padas library. You can install replace python with following command

regexp_replace in update and replace query in postgres
regexp_replace in update and replace query in postgres update message set data = replace (data, 'wmost','westernmost'); April 4, 2011 at 5:04 PM.... is there a way to avoid this problem. Can you send similar query using regexp_replace

python replace newline with space
python replace newline with space Hi, I want to replace newline character \n With space in python. How to replace newline with space in python? Thanks Hi, Its easy in python. You can use the replace method

Ads