Refactor with quickstart PMD analysis

./run.sh pmd -d /home/anit/work/codechallenge-java-pom/src/main/java/hackerrank/java/StringToken.java -f text -R rulesets/java/quickstart.xml --cache /tmp/codechallenge-pmd-analysis | less

Author: anitsh

src/main/java/hackerrank/java/StringToken.java

@@ -13,8 +13,7 @@ public String[] tokenFilter() {
                 || sentence.trim().isEmpty()) {
             return new String[]{};
         }
-        String[] splitStr = sentence.trim().split("[,\\s\\'\\?\\_\\@\\!\\.]+");
 
-        return splitStr;
+        return sentence.trim().split("[,\\s\\'\\?\\_\\@\\!\\.]+");
     }
 }