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Scala does not require semicolons (;) to end statements. Value types are capitalized (sentence case): Int, Double, Boolean instead of int, double, boolean. Parameter and return types follow, as in Pascal, rather than precede as in C. Methods must be preceded by def.
Here a whole switch expression can be used to return a value. There is also a new form of case label, case L-> where the right-hand-side is a single expression. This also prevents fall through and requires that cases are exhaustive. In Java SE 13 the yield statement is introduced, and in Java SE 14 switch expressions become a standard language ...
In Scala 2, an ADT may be defined with: [citation needed] sealed abstract class Tree extends Product with Serializable object Tree { final case object Empty extends Tree final case class Node ( value : Int , left : Tree , right : Tree ) extends Tree }
The colon comes from a general Scala syntax mechanism whereby the apparent infix operator is invoked as a method on the left operand with the right operand passed as an argument, or vice versa if the operator's last character is a colon, here applied symmetrically. Scala also features the tree-like folds using the method list.fold(z)(op). [11]
The trial of Scala case took place in December 1980. Some days before the start of the trial a key witness had died. [1] The lawyers of the defense requested that the first deputy prime minister Rodolfo Martín Villa appeared to testify, but he did not.
In the section "Features (with reference to Java)" the third paragraph makes a bold case that Scala has significantly more features than Java which make the language "theoretically cleaner". This is a highly promoting tone, that should at least be backed up with references if not completely rewritten.
Pages in category "Free software programmed in Scala" The following 22 pages are in this category, out of 22 total. ... Cookie statement; Mobile view ...
Scala is a freeware software application with versions supporting Windows, macOS, and Linux. It allows users to create and archive musical scales , analyze and transform them with built-in theoretical tools, play them with an on-screen keyboard or from an external MIDI keyboard, and export them to hardware and software synthesizers.