All Questions
92 questions
4
votes
2
answers
1k
views
Add a number to a file name if does not exist or increase the number if it exist
I'm currently working on a solution to add a number to a file name if the number does not exist or increase de number by one if the number exist.
For instance if you input "filename.jpeg" ...
- 41
7
votes
7
answers
3k
views
DnD Die in Java with regex
For my game I need to roll some values with a die. A die is formally described as:
nDs[+a]
n amount of die (optional, 1 of not set, zero must be set explicitly)
D ...
- 3,023
0
votes
2
answers
153
views
Parse file and make output in custom List [closed]
I have a file output like this and want to do parsing and put the output into a List. The biggest problem here is the name of a wake-lock which appears after ID and runtime, in some cases, it contains ...
3
votes
1
answer
101
views
Listing words from text, provide lines where appears, count them
I applied for Junior Java Developer in some company.
Got a task:"Listing words (without duplicates) from text, provide lines where appears, count them."
Output should looks like:
Alphacoronavirus - 3 ...
- 33
3
votes
3
answers
176
views
Java regex and replaceAll to extract strings into objects
I have this method that creates book objects. I pass a list of strings (size 60000+) that contain the information of the book, the function then goes and extracts the information makes the book object ...
- 63
4
votes
1
answer
133
views
Simplifying Regex Expression: calendar
I want to parse a date string with the following general format: Weekday, DD-Mon-YYYY HH:MM:SS. The calendar should also accept:
a date without the weekday
spaces instead of dashes
case-insensitive ...
- 41
2
votes
1
answer
174
views
Converting HashMap data to a Response object
I have a HashMap and I want to convert data in it to a Response object. Is it possible to achieve this code that parses the string in a better and optimized and cleaner way, maybe by using streams?
<...
- 29
3
votes
1
answer
2k
views
Validate URL with Regex and java.net.URL
I'm writing a URL validator. Firstly, it checks for special characters in the input. Secondly, it adds 'http://' and checks for validity.
...
- 133
3
votes
2
answers
101
views
Minimizing a file path
I have a simple program that "minimizes" a file path. Minimizing simply means replacing unnecessary file entries with entries that mean the same thing:
...
- 181
-1
votes
1
answer
3k
views
Java Pattern search with variable string in pattern [closed]
Is there any better and compact way to write this code:
...
- 101
2
votes
1
answer
162
views
Java Regex for Chess notations
I have this regex:
(\d?)[A-Za-z](?=(\d?)(.*))(?=(.* ){5})
It would be used by me for Chess FEN strings.
I wonder if regex ...
- 461
3
votes
1
answer
369
views
Regular Expression for text that validates IPV4 or Hostname followed by a port number eg: 127.0.0.1:8080 or localhost:8080
An attempt with regular expression to do a foolproof validation of an IV4 or Hostname:port Number.
Example texts that can be validated for any of the following:
...
- 459
5
votes
2
answers
219
views
Regex-based parsing of a specifier for dice
In this android app, the user can enter (a subset of) roll20 notation to roll that many dice. Inputs will look like "4d6" at the simplest, but the user can also add or subtract numbers, and drop or ...
- 51
3
votes
1
answer
1k
views
Pig Latin game resolved with a regex in Java
I recreated the Pig Latin game on Java. The program takes an arbitrary number of command line arguments as words, and prints to the standard output these words translated with following rules:
For ...
user146184
3
votes
1
answer
178
views
Parser and solver for percentage calculation problems
I'm working on a coding challenge to help with regular expressions, and how to write better comments in my code. The class parses a percentage question, and can return the answer.
If anyone has any ...
- 269