TEXT-126: WIP fixing checkstyle order

src/main/java/org/apache/commons/text/similarity/SorensenDiceSimilarity.java

@@ -16,13 +16,13 @@
  */
 package org.apache.commons.text.similarity;
 
-import org.apache.commons.lang3.StringUtils;
-
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.function.Function;
 
+import org.apache.commons.lang3.StringUtils;
+
 /**
  * A similarity algorithm indicating the percentage of matched characters
  * between two character sequences.
@@ -120,7 +120,7 @@ public Double apply(final CharSequence left, final CharSequence right) {
     /**
      * Converter class for creating Bigrams for SorensenDice similarity.
      */
-    private static class SorensenDiceConverter implements Function<CharSequence, Collection<Integer>> {
+    private static final class SorensenDiceConverter implements Function<CharSequence, Collection<Integer>> {
         @Override
         public Collection<Integer> apply(CharSequence cs) {
             final int length = cs.length();

src/test/java/org/apache/commons/text/similarity/SorensenDiceSimilarityTest.java

@@ -16,14 +16,14 @@
  */
 package org.apache.commons.text.similarity;
 
-import org.junit.jupiter.api.BeforeAll;
-import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.math.RoundingMode;
 import java.text.DecimalFormat;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertThrows;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
 
 /**
  * Unit tests for {@link SorensenDiceSimilarity}.
@@ -85,6 +85,12 @@ public void testGetSorensenDicesSimilarity_NullString() {
         assertThrows(IllegalArgumentException.class, () -> similarity.apply(null, "clear"));
     }
 
+    /**
+     * Format the double to two decimal places rounding it down.
+     *
+     * @param value the double value
+     * @return double formatted to two places rounding it down
+     */
     public static double printTwoDecimals(double value) {
         DecimalFormat df = new DecimalFormat("#.##");
         df.setRoundingMode(RoundingMode.DOWN);