The scala tag has no wiki summary.
1
vote
0answers
18 views
Defining transpose on a collection of irregular collections
I was asked to submit my request for code review on http://stackoverflow.com/questions/10672046/defining-transpose-on-a-collection-of-irregular-collections here.
This is a follow-up to the post I ...
2
votes
2answers
99 views
Code review of Pouring water from code chef using Scala
I had posted this question on Stackoverflow and it seems like code review might be a better venue for my query. My question is as follows:
I am trying to solve the pouring water problem from codechef ...
1
vote
0answers
35 views
Scala: Josephus problem with Actors
Another stab at the Josephus problem, this time using Actors. N people stand in a circle and every stepth person is eliminated until one is remaining.
The way I solve it here is to give each actor a ...
0
votes
0answers
22 views
Josephus problem in Scala without mutable state
The Josephus problem is a game involving a circle of people who take turns to kill themselves (being removed from the circle in the process), with the next person to go being a fixed number of places ...
1
vote
1answer
31 views
Which name should I choose for private abstract functionality with a public proxy?
I have an abstract class implementing some concrete functionality for its child classes:
abstract class Function {
def eval: Double = some_concrete_functionality_which_calls_fEval
def simplify: ...
4
votes
2answers
87 views
Attempting to eliminate var (and imperative style) from my Piece class
I've been cooking with gas since I got Daniel C Sobral's help on my last question. I am now re-reading Odersky's "Programming in Scala, 2nd Edition" (finished my first reading about this time last ...
2
votes
1answer
53 views
Ideal FP/Scala way to vaildate rectangular list
I am learning Scala and FP (Functional Programming), coming from Java, OO and a strong imperative pardigm. I am now trying to implement a small puzzle solving project so I can get some deeper hands on ...
3
votes
1answer
174 views
Pouring Water = My first scala code
This is my first time in CodeReview, I'd hope like something like that existed and voila, a fellow StackExchange site has already been done.
I just began to study Scala (coming from Python I had ...
2
votes
1answer
86 views
Help new Scala developer
I am a moderately new Scala developer working mostly by myself, so I don't have anyone to tell me what I'm doing wrong (except that the system mostly does work, so it can't be too awful). I would ...
4
votes
3answers
188 views
Finding the first stream of non-repeating elements in Scala (without recursion or side-effects)
Here are some examples:
[1, 2, 3, 4, 5] => [1, 2, 3, 4, 5]
[10, 15, 10, 15, 30] => [10, 15]
[1, 2, 3, 4, 1, 5, 6, 7] => [1, 2, 3, 4]
Here's my best (and deeply ugly) non-recursive, ...
2
votes
1answer
79 views
Scala object-function balance
I am learning Scala, coming from Java background. Here I have written a small prototype proof of concept program that is a part of concept base for a simple upcoming tutorial game. There are two game ...
3
votes
1answer
145 views
Functionally retrieving rows from a database in Scala
Consider the following piece of code:
var result = List[Measurement]()
val dbResult = conn.createStatement.executeQuery(unsentMeasurements)
while(dbResult.next) {
result ::= ...
2
votes
1answer
84 views
Scala Direction enum with Enumeration and collection usage
I've just implement direction enum
object Direction extends Enumeration {
type Direction = Value
val Up, Right, Down, Left = Value
val pairs = HashSet() ++ List((HashSet() ++ List(Up, Down)), ...
2
votes
1answer
138 views
Simple factory pattern in scala (attempting to restrict use of new)
I am a Scala newbie and attempting to improve my skills. I have decided to be playful about it and work to do a conversion of the spaceinvaders game supplied with the LWJGL. It consists of 10 Java ...
3
votes
2answers
173 views
How to improve this scala code which is checking if two byte arrays are same?
I have a method to compare two byte arrays. The code is java-style, and there are many "if-else"s.
def assertArray(b1: Array[Byte], b2: Array[Byte]) {
if (b1 == null && b2 == null) return;
...
