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Linear Search Using Scala

Big Data    On Thursday 22nd of June 2017 12:10:06 PM By Suraz Ghimire
The below program will do a linear search using scala.
We use scala ,mostly for Spark programming which is a bigdata technology. Some other big data technologies are hadoop,pig,hive,sqoop etc.

Lets see the algorithm quickly.

package algorithm2020

object _1LinearSearch {

def search(arr:Array[Int],num: Int):Int= {
for(i<- 0 until arr.length){
return i //return keyword mandatory here

def main(args: Array[String]): Unit = {
val arr=Array(1,6,3,8,9)
val num=10
val pos=search(arr,num)
pos match{
case -1=>println("Not Found")
case n=> println(s"$num found at index:$pos")


Time complexity: O(n) because it has to search linearly.
Space complexity: 1 , as it need just 1 variable to hold the index.

About Author

Suraz Ghimire