Coding gudilines for class and methods javadocs fixed.

Change-Id: I0153e6391c9ec9eacaac65c3989834b6bf5c65bf
diff --git a/src/main/java/org/onosproject/yangutils/parser/YangUtilsParser.java b/src/main/java/org/onosproject/yangutils/parser/YangUtilsParser.java
index 46e1649..ba119f6 100644
--- a/src/main/java/org/onosproject/yangutils/parser/YangUtilsParser.java
+++ b/src/main/java/org/onosproject/yangutils/parser/YangUtilsParser.java
@@ -16,18 +16,18 @@
 
 package org.onosproject.yangutils.parser;
 
+import java.io.IOException;
+
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 
-import java.io.IOException;
-
 /**
  * Abstraction of entity which provides parser service of YANG files for yangutils-maven-plugin.
  */
 public interface YangUtilsParser {
 
     /**
-     * It is an entry function to initiate the YANG file parsing.
+     * Returns the data model node. It is an entry function to initiate the YANG file parsing.
      *
      * @param file input YANG file
      * @return YangNode root node of the data model tree