Category:Scala
From Rosetta Code
This programming language may be used to instruct a computer to perform a task.
| Official website |
|---|
| Garbage collected: | Yes |
|---|---|
| Type strength: | Strong |
| Type expression: | Partially implicit |
| Type checking: | Static |
| Lang tag(s): | Scala |
| See Also: |
Your Help Needed
If you know Scala, please write code for some of the tasks not implemented in Scala.
If you know Scala, please write code for some of the tasks not implemented in Scala.
Scala is a hybrid Functional/OO language developed by Martin Odersky and his team at LAMP. Scala compiles to JVM bytecode, and can inter-operate with Java code.
The language is most focused on the results of the program, therefor the considered harmful technical computer oriented concepts like threads, semaphore, pointers, coercion, casting, goto- and break statements to struggle with are not there. For parallel processing (that very simple can archived) these concept are present but not visible to the programmer.
Lots of RC tasks addresses technical "features" of goto's, break, continue, side effects, pointers, type-casting, weak-typing and so on and are deliberately not Scala's cup of tea.
Subcategories
This category has the following 3 subcategories, out of 3 total.
Pages in category "Scala"
The following 589 pages are in this category, out of 589 total.
A
- A+B
- ABC Problem
- Abstract type
- Abundant, deficient and perfect number classifications
- Accumulator factory
- Ackermann function
- Active object
- Add a variable to a class instance at runtime
- Addition chains
- Address of a variable
- AKS test for primes
- Align columns
- Aliquot sequence classifications
- Almost prime
- Amb
- Amicable pairs
- Anagrams
- Anagrams/Deranged anagrams
- Animate a pendulum
- Animation
- Anonymous recursion
- Append a record to the end of a text file
- Apply a callback to an array
- Arbitrary-precision integers (included)
- Arena storage pool
- Arithmetic evaluation
- Arithmetic-geometric mean
- Arithmetic/Complex
- Arithmetic/Integer
- Arithmetic/Rational
- Array concatenation
- Array length
- Arrays
- Assertions
- Assertions in design by contract
- Associative array/Creation
- Associative array/Iteration
- Atomic updates
- Average loop length
- Averages/Arithmetic mean
- Averages/Mean angle
- Averages/Mean time of day
- Averages/Median
- Averages/Mode
- Averages/Pythagorean means
- Averages/Root mean square
- Averages/Simple moving average
B
- Babbage problem
- Balanced brackets
- Balanced ternary
- Benford's law
- Bernoulli numbers
- Best shuffle
- Binary digits
- Binary search
- Bitmap
- Bitmap/Bresenham's line algorithm
- Bitmap/Flood fill
- Bitmap/Histogram
- Bitmap/Midpoint circle algorithm
- Bitmap/Read a PPM file
- Bitmap/Write a PPM file
- Bitwise operations
- Boolean values
- Box the compass
- Brace expansion
- Break OO privacy
- Bulls and cows
- Bulls and cows/Player
C
- Caesar cipher
- Calendar
- Call a function
- Call a function in a shared library
- Call an object method
- Cartesian product of two or more lists
- Case-sensitivity of identifiers
- Casting out nines
- Catalan numbers
- Character codes
- Check that file exists
- Cholesky decomposition
- Circles of given radius through two points
- Classes
- Closest-pair problem
- Closures/Value capture
- Collections
- Color of a screen pixel
- Colour bars/Display
- Combinations
- Combinations with repetitions
- Comma quibbling
- Command-line arguments
- Comments
- Compare a list of strings
- Compound data type
- Concurrent computing
- Conditional structures
- Conjugate transpose
- Constrained genericity
- Constrained random points on a circle
- Continued fraction
- Convert seconds to compound duration
- Convex hull
- Conway's Game of Life
- Copy a string
- Count in factors
- Count in octal
- Count occurrences of a substring
- Count the coins
- CRC-32
- Create a file
- Create a file on magnetic tape
- Create a two-dimensional array at runtime
- Create an HTML table
- CSV data manipulation
- CSV to HTML translation
- Cumulative standard deviation
- Currency
- Currying
D
- Date format
- Date manipulation
- Day of the week
- Define a primitive data type
- Delete a file
- Department Numbers
- Detect division by zero
- Determine if a string is numeric
- Digital root
- Digital root/Multiplicative digital root
- Dijkstra's algorithm
- Dinesman's multiple-dwelling problem
- Discordian date
- DNS query
- Dot product
- Dragon curve
- Draw a clock
- Dutch national flag problem
E
- Emirp primes
- Empty directory
- Empty program
- Empty string
- Enforced immutability
- Entropy
- Enumerations
- Environment variables
- Equilibrium index
- Ethiopian multiplication
- Euler method
- Evaluate binomial coefficients
- Even or odd
- Evolutionary algorithm
- Exceptions
- Exceptions/Catch an exception thrown in a nested call
- Executable library
- Execute a Markov algorithm
- Execute a system command
- Execute HQ9+
- Exponentiation operator
- Extend your language
- Extract file extension
- Extreme floating point values
F
- Factorial
- Factors of a Mersenne number
- Factors of an integer
- Farey sequence
- Fast Fourier transform
- Fibonacci n-step number sequences
- Fibonacci sequence
- Fibonacci word
- Fibonacci word/fractal
- File extension is in extensions list
- File input/output
- File modification time
- File size
- Filter
- Find common directory path
- Find limit of recursion
- Find the last Sunday of each month
- Find the missing permutation
- First-class functions
- First-class functions/Use numbers analogously
- Five weekends
- FizzBuzz
- Flatten a list
- Flow-control structures
- Floyd's triangle
- Forest fire
- Fork
- Formatted numeric output
- Forward difference
- Four bit adder
- Fractal tree
- Fractran
- Function composition
- Function definition
G
- Gamma function
- General FizzBuzz
- Generate Chess960 starting position
- Generate lower case ASCII alphabet
- Generator/Exponential
- Generic swap
- Gray code
- Grayscale image
- Greatest common divisor
- Greatest element of a list
- Greatest subsequential sum
- Greyscale bars/Display
- Guess the number
- GUI component interaction
- GUI enabling/disabling of controls
H
- Hailstone sequence
- Hamming numbers
- Handle a signal
- Happy numbers
- Harshad or Niven series
- Hash from two arrays
- Hash join
- Haversine formula
- Hello world/Graphical
- Hello world/Line printer
- Hello world/Newbie
- Hello world/Newline omission
- Hello world/Standard error
- Hello world/Text
- Hello world/Web server
- Here document
- Heronian triangles
- Higher-order functions
- History variables
- Hofstadter Figure-Figure sequences
- Hofstadter Q sequence
- Hofstadter-Conway $10,000 sequence
- Holidays related to Easter
- Horner's rule for polynomial evaluation
- Host introspection
- Hostname
- Hough transform
- HTTP
- HTTPS
- Huffman coding
I
K
L
- Langton's ant
- Largest int from concatenated ints
- Last Friday of each month
- Last letter-first letter
- Leap year
- Least common multiple
- Left factorials
- Leonardo numbers
- Letter frequency
- Levenshtein distance
- Linear congruential generator
- List comprehensions
- Literals/Floating point
- Literals/Integer
- Literals/String
- Logical operations
- Long multiplication
- Longest common prefix
- Longest common subsequence
- Longest increasing subsequence
- Longest string challenge
- Look-and-say sequence
- Loop over multiple arrays simultaneously
- Loops/Break
- Loops/Continue
- Loops/Do-while
- Loops/Downward for
- Loops/For
- Loops/For with a specified step
- Loops/Foreach
- Loops/Infinite
- Loops/N plus one half
- Loops/Nested
- Loops/While
- Lucas-Lehmer test
- Luhn test of credit card numbers
- Lychrel numbers
- LZW compression
M
- Mad Libs
- Magic squares of odd order
- Make directory path
- Man or boy test
- Mandelbrot set
- Map range
- Matrix multiplication
- Matrix transposition
- Matrix-exponentiation operator
- Maximum triangle path sum
- Maze generation
- MD4
- MD5
- Memory allocation
- Middle three digits
- Miller–Rabin primality test
- Modular exponentiation
- Modular inverse
- Modulinos
- Monte Carlo methods
- Monty Hall problem
- Mouse position
- Move-to-front algorithm
- Multifactorial
- Multiline shebang
- Multiple distinct objects
- Multiplication tables
- Multisplit
- Munchausen numbers
- Munching squares
- Musical scale
- Mutual recursion
N
O
P
- Palindrome detection
- Pangram checker
- Parametric polymorphism
- Parse command-line arguments
- Parsing/RPN calculator algorithm
- Partial function application
- Pascal matrix generation
- Pascal's triangle
- Password generator
- Pattern matching
- Perfect numbers
- Permutations
- Permutations with repetitions
- Permutations/Derangements
- Pernicious numbers
- Phrase reversals
- Pi
- Pick random element
- Playing cards
- Plot coordinate pairs
- Power set
- Price fraction
- Primality by trial division
- Prime decomposition
- Priority queue
- Probabilistic choice
- Problem of Apollonius
- Program name
- Program termination
- Proper divisors
R
- Random number generator (included)
- Random numbers
- Range expansion
- Range extraction
- Ranking methods
- Rate counter
- Ray-casting algorithm
- Read a configuration file
- Read a file line by line
- Read a specific line from a file
- Read entire file
- Record sound
- Regular expressions
- Remove duplicate elements
- Remove lines from a file
- Rename a file
- Rep-string
- Repeat
- Repeat a string
- Respond to an unknown method call
- Retrieve and search chat history
- Retrieving an Element of an Array
- Return multiple values
- Reverse a string
- Reverse words in a string
- RIPEMD-160
- Rock-paper-scissors
- Roman numerals/Decode
- Roman numerals/Encode
- Roots of a function
- Roots of a quadratic function
- Roots of unity
- Rosetta Code/Count examples
- Rosetta Code/Find bare lang tags
- Rosetta Code/Rank languages by popularity
- Rot-13
- RSA code
- Run-length encoding
- Runge-Kutta method
S
- Search a list
- Secure temporary file
- SEDOLs
- Semiprime
- Semordnilap
- Send an unknown method call
- Send email
- Separate the house number from the street name
- Sequence of non-squares
- Sequence of primes by Trial Division
- Set
- Set consolidation
- SHA-1
- SHA-256
- Shell one-liner
- Shoelace formula for polygonal area
- Short-circuit evaluation
- Show the epoch
- Sierpinski carpet
- Sierpinski triangle
- Sieve of Eratosthenes
- Simple database
- Simple windowed application
- Simulate input/Keyboard
- Simulate input/Mouse
- Singleton
- Singly-linked list/Element definition
- Singly-linked list/Element insertion
- Singly-linked list/Traversal
- Sleep
- Sockets
- Sort an array of composite structures
- Sort an integer array
- Sort disjoint sublist
- Sort stability
- Sort using a custom comparator
- Sorting algorithms/Bogosort
- Sorting algorithms/Bubble sort
- Sorting algorithms/Counting sort
- Sorting algorithms/Cycle sort
- Sorting algorithms/Heapsort
- Sorting algorithms/Insertion sort
- Sorting algorithms/Merge sort
- Sorting algorithms/Quicksort
- Sorting algorithms/Selection sort
- Sorting algorithms/Shell sort
- Sorting algorithms/Sleep sort
- Soundex
- Sparkline in unicode
- Special characters
- Speech synthesis
- Spiral matrix
- Stable marriage problem
- Stack
- Stack traces
- Stair-climbing puzzle
- Start from a main routine
- Starting a web browser
- State name puzzle
- Statistics/Basic
- Stem-and-leaf plot
- Stern-Brocot sequence
- String append
- String case
- String comparison
- String concatenation
- String interpolation (included)
- String length
- String matching
- String prepend
- Strip a set of characters from a string
- Strip block comments
- Strip comments from a string
- Strip control codes and extended characters from a string
- Strip whitespace from a string/Top and tail
- Substring
- Substring/Top and tail
- Sudoku
- Sum and product of an array
- Sum and Product Puzzle
- Sum digits of an integer
- Sum multiples of 3 and 5
- Sum of a series
- Sum of squares
- Sutherland-Hodgman polygon clipping
- Symmetric difference
- Synchronous concurrency
- System time
T
- Take notes on the command line
- Taxicab numbers
- Temperature conversion
- Terminal control/Clear the screen
- Terminal control/Display an extended character
- Terminal control/Preserve screen
- Terminal control/Ringing the terminal bell
- Terminal control/Unicode output
- Ternary logic
- Test a function
- Text processing/1
- Text processing/2
- The Twelve Days of Christmas
- Tic-tac-toe
- Time a function
- Tokenize a string
- Top rank per group
- Topswops
- Towers of Hanoi
- Trabb Pardo–Knuth algorithm
- Tree traversal
- Trigonometric functions
- Truncate a file
