Coding gudilines for class and methods javadocs fixed.

Change-Id: I0153e6391c9ec9eacaac65c3989834b6bf5c65bf
diff --git a/src/main/java/org/onosproject/yangutils/parser/antlrgencode/GeneratedYangListener.java b/src/main/java/org/onosproject/yangutils/parser/antlrgencode/GeneratedYangListener.java
index 7f1c7f9..8304c8e 100644
--- a/src/main/java/org/onosproject/yangutils/parser/antlrgencode/GeneratedYangListener.java
+++ b/src/main/java/org/onosproject/yangutils/parser/antlrgencode/GeneratedYangListener.java
@@ -22,9 +22,10 @@
 import org.antlr.v4.runtime.tree.ParseTreeListener;
 
 /**
- * ANTLR interfaces to be implemented by listener to traverse the parse tree.
+ * Represents ANTLR interfaces to be implemented by listener to traverse the parse tree.
  */
 public interface GeneratedYangListener extends ParseTreeListener {
+
     /**
      * Enter a parse tree produced by GeneratedYangParser for grammar rule
      * yangfile.