Coding gudilines for class and methods javadocs fixed.

Change-Id: I0153e6391c9ec9eacaac65c3989834b6bf5c65bf
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/Parsable.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/Parsable.java
index 056d56a..05754a1 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/Parsable.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/Parsable.java
@@ -25,14 +25,14 @@
 public interface Parsable {
 
     /**
-     * Get the type of YANG construct data.
+     * Returns the type of YANG construct data.
      *
      * @return the type of YANG construct data.
      */
     YangConstructType getYangConstructType();
 
     /**
-     * Check if the node is valid as per YANG grammar's syntax and semantics.
+     * Checks if the node is valid as per YANG grammar's syntax and semantics.
      * This validation will be performed on entering the node in traversal
      *
      * @throws DataModelException if there is any violation of the YANG rules
@@ -41,7 +41,7 @@
     void validateDataOnEntry() throws DataModelException;
 
     /**
-     * Check if the node is valid as per YANG grammar's syntax and semantics.
+     * Checks if the node is valid as per YANG grammar's syntax and semantics.
      * This validation will be performed on exiting the node in traversal
      *
      * @throws DataModelException if there is any violation of the YANG rules