From 25c7b1c2f5a07ce9936edd3cb7bc056fb0a80cb6 Mon Sep 17 00:00:00 2001
From: Dima Tsonkova <dima03214@yahoo.com>
Date: Tue, 4 Dec 2018 15:35:01 +0200
Subject: [PATCH] It is much better for the PRNG to be instantiated only once.

---
 .../jlmd/simpleneuralnetwork/neuralnetwork/utils/Utils.java  | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/com/jlmd/simpleneuralnetwork/neuralnetwork/utils/Utils.java b/src/com/jlmd/simpleneuralnetwork/neuralnetwork/utils/Utils.java
index e82958f..67616fe 100644
--- a/src/com/jlmd/simpleneuralnetwork/neuralnetwork/utils/Utils.java
+++ b/src/com/jlmd/simpleneuralnetwork/neuralnetwork/utils/Utils.java
@@ -6,6 +6,10 @@
  * @author jlmd
  */
 public class Utils {
+
+    /** Pseudo-random number generator instance. */
+    private static final Random rand = new Random();
+
     /**
      * Returns a pseudo-random number between min and max, inclusive
      * @param min Minimum value
@@ -13,7 +17,6 @@ public class Utils {
      * @return float between min and max, inclusive
      */
     public static float randFloat(float min, float max) {
-        Random rand = new Random();
         return rand.nextFloat() * (max - min) + min;
     }
 }