Added Optimized solution for computing nth term in fibonacci series

src/main/java/com/thealgorithms/recursion/FibonacciOptimized.java

@@ -0,0 +1,23 @@
+package com.thealgorithms.recursion;
+
+/*
+    The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones,
+    starting with 0 and 1.
+       NUMBER    0 1 2 3 4 5 6 7  8  9  10 ...
+       FIBONACCI 0 1 1 2 3 5 8 13 21 34 55 ...
+*/
+
+/*T his is optimized solution for fibonacci series. It computes fibonacci series in linear(O(n)) time complexity */
+
+public final class FibonacciOptimized {
+    static int fibonacci(int limit, int num1, int num2){
+        if(limit==1){
+            return num1;
+        }
+        else{
+            return fibonacci(limit-1, num2, num1+num2);
+        }
+    }
+
+}
+