- Scala Collections Tutorial
- Scala Collections - Home
- Scala Collections - Overview
- Scala Collections - Environment Setup
- Scala Collections - Arrays
- Scala Collections - Array
- Scala Collections - Multi-Dimensional Array
- Scala Collections - Array using Range
- Scala Collections - ArrayBuffer
- Scala Collections - Lists
- Scala Collections - List
- Scala Collections - ListBuffer
- Scala Collections - ListSet
- Scala Collections - Vector
- Scala Collections - Sets
- Scala Collections - Set
- Scala Collections - BitSet
- Scala Collections - HashSet
- Scala Collections - TreeSet
- Scala Collections - Maps
- Scala Collections - Map
- Scala Collections - HashMap
- Scala Collections - ListMap
- Scala Collections - Miscellaneous
- Scala Collections - Iterator
- Scala Collections - Option
- Scala Collections - Queue
- Scala Collections - Tuple
- Scala Collections - Seq
- Scala Collections - Stack
- Scala Collections - Stream
- Scala Collections Combinator methods
- Scala Collections - drop
- Scala Collections - dropWhile
- Scala Collections - filter
- Scala Collections - find
- Scala Collections - flatMap
- Scala Collections - flatten
- Scala Collections - fold
- Scala Collections - foldLeft
- Scala Collections - foldRight
- Scala Collections - map
- Scala Collections - partition
- Scala Collections - reduce
- Scala Collections - scan
- Scala Collections - zip
- Scala Collections Useful Resources
- Scala Collections - Quick Guide
- Scala Collections - Useful Resources
- Scala Collections - Discussion
Scala Collections - Vector
Scala Vector is a general purpose immutable data structure where elements can be accessed randomly. It is generally used for large collections of data.
Declaring Vector Variables
The following is the syntax for declaring an Vector variable.
Syntax
var z : Vector[String] = Vector("Zara","Nuha","Ayan")
Here, z is declared as an vector of Strings which has three members. Values can be added by using commands like the following −
Command
var vector1: Vector[String] = z + "Naira";
Processing Vector
Below is an example program of showing how to create, initialize and process Vector −
Example
import scala.collection.immutable.Vector
object Demo {
def main(args: Array[String]) = {
var vector: Vector[String] = Vector("Zara","Nuha","Ayan");
// Add an element
var vector1: Vector[String] = vector :+ "Naira";
// Reverse an element
var vector2: Vector[String] = vector.reverse;
// sort a vector
var vector3: Vector[String] = vector1.sorted;
println(vector);
println(vector1);
println(vector2);
println(vector3);
}
}
Save the above program in Demo.scala. The following commands are used to compile and execute this program.
Command
\>scalac Demo.scala \>scala Demo
Output
Vector(Zara, Nuha, Ayan) Vector(Zara, Nuha, Ayan, Naira) Vector(Ayan, Nuha, Zara) Vector(Ayan, Naira, Nuha, Zara)
Advertisements