contain « Operation « Java Regex Q&A

1. How can split a string which contains only delimiter?    stackoverflow.com

Hi All : I am using the following code:

String sample = "::";
String[] splitTime = sample.split(":");
// extra detail omitted
System.out.println("Value 1 :"+splitTime[0]);
System.out.println("Value 2 :"+splitTime[1]);
System.out.println("Value 3 :"+splitTime[2]);

2. Check if a String only contains digits and the digits are not the same using REGEX?    stackoverflow.com

111111111 - Invalid
A121278237 - Invalid
7777777777 - Invalid

121263263 - Valid
111111112 - Valid

3. regex VS Contains. Best Performance?    stackoverflow.com

I want to compare an URI String over different patterns in java and I want fastest code possible. Should I use :

if(uri.contains("/br/fab") || uri.contains("/br/err") || uri.contains("/br/sts")

if(uri.matches(".*/br/(fab|err|sts).*"))

4. Regex required: It should contain only [alphabets] or [alphabets and digits] but not [only didgits] and not operator or special character in java    stackoverflow.com

Valid: abc abc11 Invalid: 11 a-b a&&b a << b a&b a->b

5. Why does this regex fail on a single use case - a text string containing an ampersand?    stackoverflow.com

I'm trying to find a regex to separate out the author and book title information from a data set. This one seems to work fine:

^\s*(?:(.*)\s+-\s+)?'?([^']+'?.*)\s*$

6. Is there a way to shorten a conditional that contains a bunch of boolean comparisons?    stackoverflow.com

e.g

if("viewCategoryTree".equals(actionDetail)
                || "fromCut".equals(actionDetail)
             ...

7. Need a code using regular expression in java --> String must be Captial letters(A-Z) and contain digits (0-9)    stackoverflow.com

I need a regular expression for:

String must be Captial letters(A-Z) and contain digits (0-9)

8. ReGex to check string contains only Hex characters    stackoverflow.com

I have never done regex before, and I have seen they are very useful for working with strings. I saw a few tutorials (for example) but I still cannot ...

9. How to check if a string containing 'tags' seperated by any none-word token contains a given tag in Java    stackoverflow.com

Does someone know a way on how to check, in Java, if a string containing tags seperated by space, comma or semicolon (or any non-word character) contains a given tag? For example: Sample ...

10. String contains at least one digit    stackoverflow.com

I am trying to see whether a string contains at least a digit or a lowercase or an uppercase. I have written something like this:

      int combinations ...

11. regex to split a string containing tags by spaces but not breaking the tags in java    stackoverflow.com

I am trying to form a regex that functions as mentioned below: String killing of <span class="abc">cats</span>, hi <span class="xyz">dogs</span>, Splits into :

1. killing
2. of
3. <span class="abc">cats</span>,
4. hi
5. <span class="xyz">dogs</span>,

12. Java regex to pull data from string containing start and end tag    stackoverflow.com

I would like to know the regex to pull data from a string in Java which will have following start and end tag info.

 String temp = "<!--abc Start-->..data...<!--abc end-->"

13. Split a string in Java if it contains digit - but include digit in result?    stackoverflow.com

I'm looking to split a string using Java if it contains a digit or underscore - but I want to include the digit in the result - is this possible? Eg. "Linux_version"
"Linux3.1.2.x" I want ...

14. java regular expression for String.contains    stackoverflow.com

I'm looking for how to create a regular expression, which is 100% equivalent to the "contains" method in the String class. Basically, I have thousands of phrases that I'm searching for, ...

15. Regular Expression in JAVA for Checking whether a String contains Alphabet.    coderanch.com

That's because you use ^ and $. These stand for "start of the string" and "end of the string" respectively. You are literally saying: I want the start of the string, then one single character (are you sure you didn't omit a + or * there?), then the end of the string.

16. Spliting a large string using regular expression which contain special char    forums.oracle.com

I have huge sting(xml) containing normal character a-z,A-Z and 0-9 as well as special char( <,>,?,&,',",;,/ etc.) I need to split this sting where it ends with for e.g. Original String: sdf sd hi The above sting has to be splited in to two parts since it is having two document tag. Can any body help me to ...