Created
January 31, 2018 21:34
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Scala Lists Basics worksheet
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| /* | |
| *intellij idea, file-> new -> scala worksheet | |
| */ | |
| //Lisp-style approach for creating list. | |
| //val myList = "Element1" :: "Element2" :: "Element3" :: "Element4":: Nil | |
| :: "Element3" :: "Element4" | |
| //Java-style approach | |
| val myList = List("Element1", "Element2", "Element3", "Element4") | |
| //all element to uppercase. | |
| val mapped = myList.map( s => s.toUpperCase ) | |
| //iterating and printing each element in the list | |
| mapped.foreach(println) | |
| //prepending element to the list | |
| val y = "Element0" :: myList | |
| /* | |
| *output- | |
| *y: List[String] = List(Element0, Element1, Element2, Element3, Element4) | |
| */ | |
| val myList1 = List("Element5") | |
| //Merging lists. | |
| val merged = myList ::: myList1 | |
| /* | |
| *output- | |
| *merged: List[String] = List(Element1, Element2, Element3, Element4, Element5) | |
| */ | |
| //List.concat can also be used. | |
| //val merged = List.concat(myList,myList1) | |
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