Create FibonacciIterative.scala

Author: metacoder87

src/scala/FibonacciIterative.scala

@@ -0,0 +1,24 @@
+object FibonacciIterative {
+  def fibonacciIterative(n: Int): BigInt = {
+    if (n <= 1) {
+      return n
+    }
+
+    var a = BigInt(0)
+    var b = BigInt(1)
+    var result = BigInt(0)
+
+    for (i <- 2 to n) {
+      result = a + b
+      a = b
+      b = result
+    }
+
+    result
+  }
+
+  def main(args: Array[String]): Unit = {
+    val index = 15
+    println(s"Fibonacci (iterative) of $index is: ${fibonacciIterative(index)}")
+  }
+}