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Tagged Questions

0
votes
3answers
28 views

How to replace multiple words with space in a string using Java

I tried to replace a list of words from a give string with the following code. String Sample = " he saw a cat running of that pat's mat "; String regex = "'s | he | of | to | a | and | in | that"; ...
0
votes
7answers
44 views

Replace the last occurrence of a string in another string

Let's say I have a string string myWord="AAAAA"; I want to replace "AA" with "BB", but only the last occurrence, like so: "AAABB" Neither string.replace() nor string.replaceFirst() would do the ...
0
votes
1answer
26 views

Regex matches space between characters

I have this regex (\((-?\d+.\d+\s?-?\d+.\d+,?)+\))* that seems to be matching the space between characters at the very beginning of the string along with the parts that I would like to match.How ...
-1
votes
1answer
29 views

Regex expression for |abc-amount [on hold]

I want a regex for my output |Term Loan-amount or |Bill Purchase / Discounting (Inland)-amount or |PARTNER_NAME-PAN should accept only in this fashion.
-2
votes
1answer
34 views

regular expression matching for [ ]

I have a regex expression [a-zA-Z- \d )( / . ] which matches my requirements but i want it to match [] this brackets too. It should match my output: 24301-Manufacture of man-made fibres [this class ...
0
votes
1answer
23 views

How do I extract variable data from a line of string with tags?

I'm trying to write Java code to go to a website, read the HTML code line-by-line, extract certain pieces of data, including an embedded URL to go to another website, and repeat the process 100 times. ...
0
votes
2answers
26 views

How to create a Patern for a date using a Scanner?

I have a .csv file with line like 30-11-2013 ;30-11-2013 ;SUMMARY ;0.0 ;200.0 ;2800.0 ;2800.0 31-12-2013 ;31-12-2013 ;SUMMARY ;0.0 ;200.0 ;3000.0 ;3000.0 02-01-2014 ;02-01-2014 ;TRANSF ;0.0 ;300.0 ...
0
votes
1answer
27 views

java.util.regex Validating Phone numbers

I am trying to validate a phone number input from a user(in my project). This is the method I created trying to validate it and also give them 3 tries to enter a valid format. However what ever I ...
1
vote
2answers
51 views

Java regex, find text inside

I need to find some string in text after keyword in inside brackets first occurrence. This is the text example: Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor ...
0
votes
4answers
39 views

Remove special characters surrounded by white space

How can i remove special characters having white space on side. String webcontent = "This is my string. i got this string from blabla.com." When i use this regex ...
0
votes
0answers
41 views

How to Use this type of string data in Android?

I am working with a web service for my next android application. This web service returns me some data, which is in an escape sequence and in JSON format. I am not able to process it using Java in ...
-3
votes
3answers
38 views

regular expression for string “ a123ab-lift(admin-hat)” [on hold]

I want to know the regex which confirms to a123ab-lift(admin-hat) My string can contain alphabets, numbers and characters " ( " , " ) " , " - "
-3
votes
3answers
55 views

Java - making a regex that checks if some letters are in a string [on hold]

I am trying to make regex that will check if certain characters are in a string. For instance if I have the string "example" I want to be able to decide if the characters e, l and a are in the string. ...
0
votes
1answer
14 views

Largest Row and Column Java regex

Here is a program that determines the largest row and column on any given random array. I am not sure what the last 3 lines of code are doing. I know they are part of the regular expression but ...
0
votes
5answers
56 views

.replaceAll() method not working correctly

As a bit of background to the problem I load in a text file and then assign a phrase from that text file to become a randomPirateWord, I then change the letters into that text file to become **'s and ...
-2
votes
1answer
15 views

What is the Java equivalent of Perl’s regex with eval? [duplicate]

I know that the answer to my question is somewhere around here, but I just can’t find it anymore. I tried several searches like java string replace execute code java matcher replace execute code ...
2
votes
4answers
54 views

Regex Pattern matching for an URL

I have a method and input to that is an URL string. I would different types of URL (sample 5 URLs i have mentioned below) String url1 = "http://domainName/contentid/controller_hscc.jsp?q=1" ; String ...
0
votes
3answers
49 views

Regex doesnt work, how should it be formulated?

I Want to know if a String consists only of the same character except at the last index, it can be any other possible character except the character that's leading. For Example: "FFFFFFFl" matches ...
0
votes
0answers
14 views

Apache Lucene index large files based on new lines [on hold]

Scenario I want to be able to allow text search features that users can use to search through large log files (~10 GB) in the browser? The user will input a search query and they should get back all ...
0
votes
1answer
33 views

HTML content to a string with regular expressions

I need to compose an email body and have user name password atributes to be added of every user to it. For now i have the html content in a string and im trying to have string formatter to replace the ...
0
votes
1answer
30 views

Modifying xml via regex in java

I have the following XML String: <asd1:content></asd1:content> The namespace prefix asd1 could be different at different places in the XML file. I want to modify it to : ...
1
vote
4answers
39 views

Group Matching Regex fails in Java

Why does this regex pattern fail to match the groups in Java. When I run the same example with in a bash shell with echo and sed it works. String s = "Match foo and bar and baz"; //Pattern p = ...
0
votes
2answers
21 views

String Message Staring with bullet-in needs to in the nextLine

I had string message,which contains message like below. Here im trying to spilt the message when the line starts with number followed by .(full stop) String str="1. Hi this is test 2. this is also ...
-1
votes
4answers
42 views

get the pattern before a given word

below is my text : 12,7 C84921797-6 Provisoirement, 848,80 smth i want to extract the value 848,80 with the float pattern : [-+]?[0-9]*\\,?[0-9]+ but the code i am using extracts only the first ...
0
votes
1answer
48 views

Regex not matching what I want [on hold]

Every time I submit a html form with the request "Password" I get a return telling me it doesn't match the password complexity rules. My validation doesn't seem to work. If anyone can shed any light ...
0
votes
2answers
40 views

Extracting Strings within messages which contains concatanation characters

I'm trying to extract messages from following type of strings, Error_Message('The value 1,2 and 3 that you have entered is invalid.'); using the following regular expression, ...
0
votes
3answers
42 views

RegEx to match a string between a set of words

I am trying to match a group of words between two words in a String. I will be using Java RegEx. Input Text The clever fox JUMPED OVER the big dog and ran away. Expected Output the big RegEx ...
0
votes
1answer
44 views

Display characters other than alphabets using regular expression

I want to have this functionality in the server side using java.util.regex.Pattern and java.util.regex.Matcher. "cdAbb#2547dbsbz78678".match(/[^a-zA-Z]+/g).join('');
0
votes
0answers
27 views

How to compare the Xml file containing list of regular Expression with another XML in java?

EX: I want to Compare this two file and filter out the common things... Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0;) OR 1=1 -- Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0;) AND ...
-2
votes
2answers
62 views

regex for even no. of single quotes

I am trying to find 'AND' followed by even no. of single(') quotes and replace it with 'OR', I am trying it in java using regex but no luck so far e.g. company='sam"'"s AND joseph"'"s' AND ...
-1
votes
3answers
32 views

Java Regex needed

I need regex that will fail only for below patterns and pass for everything else. RXXXXXXXXXX (X are digits) XXX.XXX.XXX.XXX (IP address) I have basic knowledge of regex but not sure how to ...
0
votes
2answers
28 views

Why is there a PatternSyntax Excpetion for the following program?

I am getting a Pattern Syntax Exception for the following program. I have escaped the backslashes by using "\\", but there is a still an exception saying: Exception in thread "main" ...
0
votes
3answers
47 views

Regex to get rid of content after the first “>”

Regex to get rid of the content after first ">" in the string below. And putting whatever is there after the first ">" in another string . eg: String input = <img alt="" ...
-3
votes
1answer
35 views

HackerRank Tweets Concern [on hold]

I am working on HackerRank problems alongside project euler to help me improve in java. I have a question about the HackerRank tweets problem. The problem is described here: ...
0
votes
3answers
68 views

Regex to seperate the lines of the file

Lesson no 1 lesson name: Jack and Jill went to America lesson contents: some XXXXX XXXXX contents lesson Description: jack and jill lesson description Lesson no 2 lesson name: Lorem ipsum ...
0
votes
3answers
23 views

regex: tokenizing <opening><scotch-game><fried-liver-attack>

How can I get individual tokens of the the <opening><scotch-game><fried-liver-attack> string using regex. So the output should be 3 following strings: opening scotch-game ...
4
votes
2answers
39 views

Regular expressions optional items

If I have this regular expression print_first = print_first.replace(/ T(op Choice)?/gi, "<span class='top_choice'>&nbsp;Top Choice</span>"); Shouldn't this match these strings: T, ...
0
votes
4answers
44 views

Insert character before specific character Java

I have been taking a look at the regular expressions and how to use it in Java for the problem I have to solve. I have to insert a \ before every ". This is what I have: public class TestExpressions ...
0
votes
3answers
33 views

Regex for instances in STEP-files?

I have to parse some STEP-files (ISO-10303-21) from different CAD-Systems and they are always structured differently. This are the forms that might appear: #95=STYLED_ITEM('',(#94),#92); #12 = ...
0
votes
3answers
40 views

groupCount() in java.util.regex.Matcher always returns 0

I've trying to count how many matching patterns are there in a string. I'm new to using java.util.regex and I was planning on using matcher.groupCount() to get the number of matching groups. Since ...
3
votes
3answers
58 views

Removing a large space from a text in Java

I am trying to remove a big whitespace and retain the CR and LF character in a String. This string is generated by Lotus Domino API. This is basically an eml file converted to text by Lotus API. When ...
0
votes
3answers
61 views

What is Java Regex to check if a String is a chain of numbers delimited by “_” (java)?

I want to check if a String is a chain of numbers delimited by "_": Examples: 200_121_545 : return true; 455 : return true; // it doesn't need _ to be valid, a number is ok ff_78 ...
-5
votes
1answer
50 views

How to strip the package name from a fully qualified class name [on hold]

How to match a fully qualified class name like com.mycompany.models.Friend using regex and strip away the package name so the result would be Friend for the example given?
1
vote
4answers
46 views

Regex in Java with multiple condition to extract arithmetic operator

I am new to regular expression syntax, after one whole day digging on the google, still can't find a good regex in java to extract the thing I want from a string... for example:I have a stringA = ...
0
votes
3answers
75 views

Java String tokens

I have a string line String user_name = "id=123 user=aron name=aron app=application"; and I have a list that contains: {user,cuser,suser} And i have to get the user part from string. So i have ...
0
votes
2answers
48 views

Word boundary in regular expression

I am using the following regular expression: if (input.matches("^[\\d\\s()\bAND\b\bOR\b.]+$")) { // do something } My goal is to validate only numbers (int and decimal), spaces, ( ), dot, AND, ...
0
votes
1answer
33 views

java.lang.illegalargumentexception - thrown by HttpURLConnection getHeaderFieldKey() method, host = null

I'm trying to build a simple linkchecker application. I extract all href attributes from a webpage, and output to a file. I then check what I have parsed against a regex to check for valid URLs, and ...
0
votes
2answers
25 views

Extract value from string using regex that has a pattern

Want to return a extracted value from string which matches a particular pattern. Fot eg: i want to extract "hotmail" from String s = "[email protected]" import java.util.*; import ...
1
vote
1answer
13 views

Check for underscore wrapped any valid Windows filename characters except underscore and csv extension

I'm still very new to regex, so I think I can determine whether a string ends with a case-insensitive .csv: (\\.(?i)(csv)) However, I do not know how to check that everything before that is at ...
3
votes
3answers
55 views

Java RegEx for parsing the quoted arguments

Need a Java regex pattern for the following scenario: Case 1: Input string: "a" Matches: a Case 2: Input string: "a b" Matches: a b Case 3: Input string: "aA Bb" cCc 123 4 5 6 ...

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