From 9b0730473545a2b3db6a114c0e8bb1f8219f9d30 Mon Sep 17 00:00:00 2001
From: Phil Steitz <psteitz@apache.org>
Date: Sat, 1 Jan 2011 20:15:27 +0000
Subject: [PATCH] Fixed checkstyle errors: hidden fields, missing javadoc.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_X@1054280 13f79535-47bb-0310-9956-ffa450edef68
---
 .../distribution/BetaDistributionImpl.java     | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/main/java/org/apache/commons/math/distribution/BetaDistributionImpl.java b/src/main/java/org/apache/commons/math/distribution/BetaDistributionImpl.java
index 3547d55b1..3ab3b594b 100644
--- a/src/main/java/org/apache/commons/math/distribution/BetaDistributionImpl.java
+++ b/src/main/java/org/apache/commons/math/distribution/BetaDistributionImpl.java
@@ -261,8 +261,8 @@ public class BetaDistributionImpl
      */
     @Override
     protected double calculateNumericalMean() {
-        final double alpha = getAlpha();
-        return alpha / (alpha + getBeta());
+        final double a = getAlpha();
+        return a / (a + getBeta());
     }
 
     /**
@@ -277,17 +277,23 @@ public class BetaDistributionImpl
      */
     @Override
     protected double calculateNumericalVariance() {
-        final double alpha = getAlpha();
-        final double beta = getBeta();
-        final double alphabetasum = alpha + beta;
-        return (alpha * beta) / ((alphabetasum * alphabetasum) * (alphabetasum + 1));
+        final double a = getAlpha();
+        final double b = getBeta();
+        final double alphabetasum = a + b;
+        return (a * b) / ((alphabetasum * alphabetasum) * (alphabetasum + 1));
     }
 
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public boolean isSupportLowerBoundInclusive() {
         return false;
     }
 
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public boolean isSupportUpperBoundInclusive() {
         return false;