All Questions
10,882 questions
0
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CodeView Custom JavaFX Node
I created this to learn about creating custom controls using Region. I did not do any testing of the Control, and it is limited to displaying Java only. I didn't need this for any reason other than ...
- 239
5
votes
1
answer
300
views
PathFinding.java: The grid view and model
Motivation
I am really fond of qiao/PathFinding.js, and, so, I decided to start to do something similar (PathFinding.java). Also, this time, I am wishing to practice some MVC-patterns. It would seem ...
- 31.3k
8
votes
2
answers
574
views
Own HTTP server implementation in Java with a simple template engine
I would like to hear what you think about my simple HTTP Server implementation with a template engine in Java.
Have I overlooked any "pitfalls or caveats", or is there anything else to note?
...
- 936
3
votes
1
answer
146
views
Java: counting letters FROM A fractal algorithm shows prime number patterning
This example finds all "letter" structures.
letter a = LMLMMM
letter b = LMMMMM
letter c = MMLMMM
letter d = MMMMMM
Symbol L = live = prime candidate number
Symbol M = multiple = composite ...
- 317
1
vote
3
answers
113
views
Is this exception handling missing anything?
This is the code. I'm uncertain about the last block.
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- 225
2
votes
0
answers
52
views
Funny time with DNA: a \$k\$-mer index data structure in Java, Take II
(See the previous and initial iteration.)
Intro
This time, I decided to pack the genomic data such that 4 nucleotide bases are encoded into a single byte. In other words, ...
- 31.3k
4
votes
1
answer
90
views
Funny time with DNA: a \$k\$-mer index data structure in Java
(See the next iteration.)
This time I have programmed a simple data structure called \$k\$-mer index. The actual word \$k\$-mer is a synonym of substring of length \$k\$. This data structure is built ...
- 31.3k
5
votes
1
answer
447
views
Java: prime number envelopes FROM A fractal algorithm shows prime number patterning
It implements prime number envelopes (page 3) from my paper: https://zenodo.org/records/16829092
The full working example is on github: https://github.com/cerebrummi/primeenvelopes
"StartFA"...
- 317
10
votes
2
answers
1k
views
Java: A fractal algorithm shows prime number patterning
The fully working example finds all primes (theoretically). In real life the FA is constrained by stack size. The theoretical run is important, because it proves that all primes have a deterministic ...
- 317
4
votes
3
answers
651
views
Multithreaded array summation in Java - best practice, structure, acceptable use of Constant classes. There is no concurrency?
The task is educational. The basic functionality is working. Here are some questions for my code. Please give me feedback.
Main:
Architecture & Design: Is the decomposition appropriate? Should ...
- 43
5
votes
6
answers
930
views
The Haversine formula in Java for computing distance along the Earth between two locations expressed in geographical coordinates
This time, I have implemented the Haversine formula:
io.github.coderodde.geom.Haversine.java:
...
- 31.3k
4
votes
2
answers
276
views
Alternate two messages on mouse click using Java-FX
Write a program to display the text Welcome to Java and LearningJavaFX alternately with a mouse click.
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- 43
5
votes
1
answer
385
views
Positive Integer Class Supporting Arbitrary Number of Digits
I have implemented an elementary positive integer class that supports addition, subtraction, and multiplication for an arbitrary number of digits using a singly linked list.
...
- 371
2
votes
0
answers
87
views
Simple image captcha test in Java and JS (revised version)
Following on from my previous question, I would like to know what could be improved here and whether it is now secure.
I had to use Java 8 because the Blade lib was built with it, and I want to extend ...
- 936
4
votes
1
answer
102
views
Implement a simple image captcha test yourself in Java and JS
First of all: I was looking for a simple image captcha solution for a website, but all I found were "Over-the-top" solutions for me. So I decided to write something to self.
I mainly use two ...
- 936