Create math directory and recursive factorial

joaodos3v · abranhe · commit 104811b8da34 · 2020-10-06T16:43:42.000-04:00
diff --git a/math/RecursiveFactorial.java b/math/RecursiveFactorial.java
@@ -0,0 +1,20 @@
+package testes;
+/**
+ * Java implementation of recursive factorial
+ * @author @joao-vieira
+ */
+
+public class RecursiveFactorial {
+
+    public int recursiveFactorial(int n) {
+        if(n <= 1) return 1;
+        return n * recursiveFactorial(n-1);
+    }
+    
+    public static void main(String[] args) {
+        // Test
+        int number = 3;
+        System.out.println(number + "! = " + new RecursiveFactorial().recursiveFactorial(number));
+    }
+    
+}
