Name: Scala
Creator(s): Martin Odersky
Date: January 20, 2004
Website: scala-lang.org
Scala is a strong statically typed general-purpose programming language which supports both object-oriented programming and functional programming. Designed to be concise, many of Scala's design decisions are aimed to address criticisms of Java. Scala source code can be compiled to Java bytecode and run on a Java virtual machine (JVM). Scala provides language interoperability with Java so that libraries written in either language may be referenced directly in Scala or Java code.
Variables in Scala can be declared with the keyword var or val followed by the name of the variable, an = sign and the value. You can also optionally specify a data type.
var name = "Jacob"
val num = 42If/Else statements in Scala are very similar to other languages with brackets around the condition and curly braces around the body.
if (true) {
println("True!")
} else if (false) {
println("False!")
} else {
println("WTF?!")
}Loops in Scala are very similar to other languages, see one example below.
for (x <- 1 to 10) {
println("The value of x is: " + x)
}Functions in Scala are declared using the keyword def and follow a similar syntax to other languages, see one example below.
def addInt(a:Int, b:Int):Int = {
var sum:Int = a + b
return sum
}
println(addInt(1, 2))Classes in Scala are declared using the keyword class and follow a similar syntax to other languages, see one example below.
class Point(xa:Int, ya:Int) {
var x:Int = xa
var y:Int = ya
def move(xb:Int, yb:Int) {
x = xb
y = yb
}
}
var point = new Point(10, 20)
println(point.x)
println(point.y)
point.move(30, 40)
println(point.x)
println(point.y)- Scaladex ~ The Scala library index.