From 5ce337fa54373fd984fe00b42e06a8300e5249b0 Mon Sep 17 00:00:00 2001
From: asri71 <asrivastava109@sapient.com>
Date: Tue, 5 Mar 2019 17:08:54 +0530
Subject: [PATCH] Code changes to adhere to code best practices

---
 src/main/java/com/types/Queue.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/types/Queue.java b/src/main/java/com/types/Queue.java
index a247b348..11cfe78b 100644
--- a/src/main/java/com/types/Queue.java
+++ b/src/main/java/com/types/Queue.java
@@ -1,6 +1,8 @@
 package src.main.java.com.types;
 
 
+import java.util.NoSuchElementException;
+
 /**
  * Interface to provide queue specific functionality to the implementing class
  * This interface only defines the functionality which the queue implementing classes require.
@@ -10,7 +12,7 @@ package src.main.java.com.types;
 public interface Queue<T> extends DataStructure<T> {
 
     //Method to add element
-    public boolean offer(T t);
+    public boolean offer(T t) throws NullPointerException;
 
     //Method to remove element
     public T poll();
@@ -19,7 +21,7 @@ public interface Queue<T> extends DataStructure<T> {
     public T peek();
 
     //Method to check element on head. This throws exception on runtime if the queue is empty
-    public T element();
+    public T element() throws NoSuchElementException;
 
 
 }