Home Java Example Java Util Escaping Special Characters in a Pattern
Questions:Ask|Latest

 
 

Share on Google+Share on Google+

Escaping Special Characters in a Pattern

Advertisement
This section illustrates you how to escape all special characters from the given string or text. Here, you can learn the way of detecting all special characters present in the given string.

Escaping Special Characters in a Pattern

     

This section illustrates you how to escape all special characters from the given string or text. Here, you can learn the way of detecting all special characters present in the given string.

Program Result:

This section provides an example for the best illustration about the way of matching special characters in the given string or text. This program finds special characters and replaces all the detected special characters by "F" character and display whole string with the "F" character place of any special characters in the given string or text.

Code Description:

Pattern.compile("[^a-zA-Z0-9 ]"):
This method compiles a regular expression "[^a-zA-Z0-9 ]" which does not detects a to z, A to Z and 0 to 9 characters, means it detects all special symbols or characters.

Here is the code of the program:

import java.util.regex.*;
import java.io.*;

public class EscapeSpecialChar{
  public static void main(String[] argsthrows IOException{
  BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  System.out.print("Enter string to find special characters: ");
  String string = in.readLine();
  Pattern pattern = Pattern.compile("[^a-zA-Z0-9]");
  Matcher matcher = pattern.matcher(string);
  String str = matcher.replaceAll("F");
  System.out.print(str);
  }
}

Download this example.

Advertisements

If you enjoyed this post then why not add us on Google+? Add us to your Circles



Liked it!  Share this Tutorial


Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.

Posted on: February 22, 2008

Related Tutorials

Ask Questions?    Discuss: Escaping Special Characters in a Pattern   View All Comments

Post your Comment


Your Name (*) :
Your Email :
Subject (*):
Your Comment (*):
  Reload Image
 
 
Comments
DMCA.com