Add recursive number printing implementation

Author: gourab04

Recursion/n_Number.java

@@ -0,0 +1,17 @@
+public class n_Number {
+
+    public static void main(String[] args) {
+        fun1(5);
+    }
+
+    static void fun1(int n) {
+        {
+            if (n == 0) {
+                return;
+            }
+            fun1(n-1);
+            System.out.println(n);
+        }
+
+    }
+}