assignment

assignments/AssigmentS6/DequeInterface.java

@@ -0,0 +1,30 @@
+/** An interface for the ADT deque.
+    @author Frank M. Carrano
+ */
+public interface DequeInterface<T>
+{
+    /** Adds a new entry to the front/back of this deque.
+       @param newEntry  An object to be added. */
+    public void addToFront(T newEntry); 
+    public void addToBack(T newEntry);
+    
+    /** Removes and returns the front/back entry of this deque.
+       @return  The object at the front/back of the deque.
+       @throws  EmptyQueueException if the deque is empty before the
+                operation. */
+    public T removeFront(); 
+    public T removeBack();
+    
+    /** Retrieves the front/back entry of this deque.
+       @return  The object at the front/back of the deque.
+       @throws  EmptyQueueException if the deque is empty. */
+    public T getFront(); 
+    public T getBack();
+    
+    /** Detects whether this deque is empty.
+       @return  True if the deque is empty, or false otherwise. */
+    public boolean isEmpty();
+    
+    /* Removes all entries from this deque. */
+    public void clear(); 
+} // end DequeInterface