added fizzbuzz without custom number type

fizzbuzz/Fizzbuzz.java

@@ -0,0 +1,46 @@
+public class Fizzbuzz {
+
+	@FunctionalInterface
+	static interface Action {
+		void execute();
+	}
+
+	@FunctionalInterface
+	static interface Consumer {
+		void take(int i);
+	}
+
+	static Action nop = () -> {};
+	
+	static void executeIfElse(int condition, Action ifAction, Action elseAction) {
+		Action[] branches = new Action[condition + 1];
+		branches[condition] = ifAction;
+		branches[0] = elseAction;
+		branches[condition].execute();
+	}
+	
+	static void forLoop(int start, int end, Consumer each) {
+		executeIfElse(end - start, () -> {
+			each.take(start);
+			forLoop(start + 1, end, each);
+		}, nop);
+	}
+
+	public static void main(String[] args) {
+		forLoop(1, 20, i -> {
+			executeIfElse(i % 3, () -> {
+				executeIfElse(i % 5, () -> {
+					System.out.print(i);
+				}, () -> {
+					System.out.print("Buzz");
+				});
+			}, () -> {
+				System.out.print("Fizz");
+				executeIfElse(i % 5, nop, () -> {
+					System.out.print(" Buzz");
+				});
+			});
+			System.out.println();
+		});
+	}
+}