Add fib-java

1 files changed, 21 insertions, 0 deletions

diff --git a/entries/nritschel/fib-java/src/Main.java b/entries/nritschel/fib-java/src/Main.java
new file mode 100644
index 0000000..8ae46f1
--- /dev/null
+++ b/entries/nritschel/fib-java/src/Main.java
@@ -0,0 +1,21 @@
+public class Main {
+    public static void main(String[] args) {
+        if (args.length < 1) {
+            System.out.println("""
+                    Please provide:
+                    1. fibonacci number to compute, and
+                    2. (optional) the calculation method (naive or cached).""");
+        }
+        else {
+            FibonacciNumberFactory factory;
+            if (args.length >= 2 && args[1].equals("naive")) {
+                factory = new NaiveFibonacciNumberFactory();
+            }
+            else {
+                factory = new CachedFibonacciNumberFactory();
+            }
+            FibonacciCalculator calculator = new FibonacciCalculatorImpl(factory);
+            System.out.println(factory.getFibonacciNumber(Integer.parseInt(args[0])).calculate(calculator));
+        }
+    }
+}