Data commit

Task/Rate-counter/Java/rate-counter-1.java

@@ -0,0 +1,19 @@
+import java.util.function.Consumer;
+
+public class RateCounter {
+
+    public static void main(String[] args) {
+        for (double d : benchmark(10, x -> System.out.print(""), 10))
+            System.out.println(d);
+    }
+
+    static double[] benchmark(int n, Consumer<Integer> f, int arg) {
+        double[] timings = new double[n];
+        for (int i = 0; i < n; i++) {
+            long time = System.nanoTime();
+            f.accept(arg);
+            timings[i] = System.nanoTime() - time;
+        }
+        return timings;
+    }
+}

Task/Rate-counter/Java/rate-counter-2.java

@@ -0,0 +1,33 @@
+import java.util.function.IntConsumer;
+import java.util.stream.DoubleStream;
+
+import static java.lang.System.nanoTime;
+import static java.util.stream.DoubleStream.generate;
+
+import static java.lang.System.out;
+
+public interface RateCounter {
+  public static void main(final String... arguments) {
+    benchmark(
+      10,
+      x -> out.print(""),
+      10
+    )
+      .forEach(out::println)
+    ;
+  }
+
+  public static DoubleStream benchmark(
+    final int n,
+    final IntConsumer consumer,
+    final int argument
+  ) {
+    return generate(() -> {
+      final long time = nanoTime();
+      consumer.accept(argument);
+      return nanoTime() - time;
+    })
+      .limit(n)
+    ;
+  }
+}