Add Linear Search in Scala #5144 (#5204)

Author: konradkelly

archive/s/scala/LinearSearch.scala

@@ -0,0 +1,33 @@
+object LinearSearch {
+    def main(args: Array[String]): Unit = {
+        if (args.length != 2) {
+            println("Usage: please provide a list of integers (\"1, 4, 5, 11, 12\") and the integer to find (\"11\")")
+            return
+        }
+        
+        val list = args(0);
+        val key = args(1);
+
+        try {
+            val arr = list.split(",").map(_.trim.toInt)
+            val target = key.trim.toInt
+           
+            var flag = 0
+            var pos = -1
+            for (i <- arr.indices) {
+                if (arr(i) == target) {
+                    flag = 1
+                    pos = i
+                    println("true")
+                    return
+                }
+            }
+            if (flag == 0) {
+                println("false")
+            }
+        } catch {
+            case _: NumberFormatException =>
+            println("Usage: please provide a list of integers (\"1, 4, 5, 11, 12\") and the integer to find (\"11\")")
+        }
+    }
+}