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authorKristin Linn <klinn@upenn.edu>2015-10-20 16:26:35 -0400
committerKristin Linn <klinn@upenn.edu>2015-10-20 16:26:35 -0400
commit396e6f5d9708f827512c4699240f72477366ff76 (patch)
treed63b41a4d91ea80c594574c48fc6416d6fd9a538 /scala.html.markdown
parent11aab085d656b79482e92a05acbbac81125bfb78 (diff)
parent5fb5dd7c7fd7670faca6b8cfff9ef1ffdbd65c0d (diff)
Merge branch 'master' of https://github.com/adambard/learnxinyminutes-docs
Diffstat (limited to 'scala.html.markdown')
-rw-r--r--scala.html.markdown16
1 files changed, 10 insertions, 6 deletions
diff --git a/scala.html.markdown b/scala.html.markdown
index c482752d..7f545196 100644
--- a/scala.html.markdown
+++ b/scala.html.markdown
@@ -6,7 +6,6 @@ contributors:
- ["Dominic Bou-Samra", "http://dbousamra.github.com"]
- ["Geoff Liu", "http://geoffliu.me"]
- ["Ha-Duong Nguyen", "http://reference-error.org"]
-filename: learn.scala
---
Scala - the scalable language
@@ -43,9 +42,13 @@ Scala - the scalable language
// Printing, and forcing a new line on the next print
println("Hello world!")
println(10)
+// Hello world!
+// 10
// Printing, without forcing a new line on next print
print("Hello world")
+print(10)
+// Hello world!10
// Declaring values is done using either var or val.
// val declarations are immutable, whereas vars are mutable. Immutability is
@@ -240,10 +243,11 @@ i // Show the value of i. Note that while is a loop in the classical sense -
// comprehensions above is easier to understand and parallelize
// A do while loop
+i = 0
do {
- println("x is still less than 10")
- x += 1
-} while (x < 10)
+ println("i is still less than 10")
+ i += 1
+} while (i < 10)
// Tail recursion is an idiomatic way of doing recurring things in Scala.
// Recursive functions need an explicit return type, the compiler can't infer it.
@@ -562,8 +566,8 @@ sendGreetings("Jane") // => "Hello Jane, 100 blessings to you and yours!"
// Implicit function parameters enable us to simulate type classes in other
// functional languages. It is so often used that it gets its own shorthand. The
// following two lines mean the same thing:
-def foo[T](implicit c: C[T]) = ...
-def foo[T : C] = ...
+// def foo[T](implicit c: C[T]) = ...
+// def foo[T : C] = ...
// Another situation in which the compiler looks for an implicit is if you have