Pattern « character « Java Data Type Q&A

1. Special Character Check using java pattern?    stackoverflow.com

Please get me the code for saving a-z,A-Z,0-9 also below mention characters • . period • , comma • ? question mark • ! exclamation point • ...

2. Special Character Check using java pattern?    stackoverflow.com

Possible Duplicate:
Special Character Check using java pattern?

• . period
• , comma
• ? question ...

3. Detecting when a series of characters repeats itself in better than O(n!)    stackoverflow.com

I need to find when a series of characters (it's actually a really long number) begins to repeat itself. I figured that a pattern would be easiest. Can anyone help me? ...

4. URLDecoder: Illegal hex characters in escape (%) pattern - For input string: "    stackoverflow.com

I am getting this exception while trying to generate a .PDF file from my application.

URLDecoder: Illegal hex characters in escape (%) pattern - For input string:....

java.lang.IllegalArgumentException: URLDecoder: ...

5. Character sets of the pattern symbols    stackoverflow.com

Is there a way to get sets of the pattern symbols? For example, I have a regular expression [az]+[A-Z]*. Then the symbol set of the first symbols is a and z. Then ...

6. Find a subset of lexicographically ordered strings with unicode characters starting with the same pattern    stackoverflow.com

I need to find a subset of names in a very much internationalized project (all latin characters possible), based on a starting pattern. For example:

"more, moreover", "morse"

7. Reg. Expr. using Pattern - Invalidate a String, if it contains certain characters    coderanch.com

8. Pattern: illegal escape character    java-forums.org

Thanks for the reply I am still unsuccessful though, does the \\[ then got to \[ and escape the first bracket? because if i double backslash the backslash (".\\\[\[(](.+\\[)\[]") it produces the same exception. Also if i prepend the [ which i want taken literally as a double \\ i get a runtime exception saying group not closed at index 16 ...

9. URLDecoder: Illegal hex characters in escape (%) pattern    forums.oracle.com

U+000F and U+0016 are non-printing control characters that are explicitly forbidden in an URL and if I remember correctly even spell trouble when they are encoded. If you want to transfer random byte data, then your best bet is to use some ASCII-safe encoding such as Base64 (note that you need to use a [modified Base64|http://en.wikipedia.org/wiki/Base64#URL_applications] in URLs to avoid having ...

10. Searching characters in multiline string using Pattern    forums.oracle.com

Pattern patternComments = Pattern.compile(commentText); Matcher matcherComments = patternComments.matcher(reqData,Pattern.MultiLIne); while(matcherComments.find()){ int start = matcherComments.end(); int endIndex = reqData.indexOf("_", start); if(endIndex != -1){ String oldStr = reqData.substring(start, endIndex+1); String matcher = commentText + oldStr + 1+";"; String replace = "mso-comment-reference:" + oldStr + 10+";"; reqData = reqData.replace(matcher, replace); } } The above program replaces _1 with_10, but this fails. It works fine when ...