assignment

assignments/AssigmentS5/StackInterface.java

@@ -0,0 +1,30 @@
+/**
+   An interface for the ADT stack.
+   @author Frank M. Carrano
+   @author Timothy M. Henry
+   @version 5.0
+*/
+public interface StackInterface<T>
+{
+   /** Adds a new entry to the top of this stack.
+       @param newEntry  An object to be added to the stack. */
+   public void push(T newEntry);
+  
+   /** Removes and returns this stack's top entry.
+       @return  The object at the top of the stack. 
+       @throws  EmptyStackException if the stack is empty before the operation. */
+   public T pop();
+  
+   /** Retrieves this stack's top entry.
+       @return  The object at the top of the stack.
+       @throws  EmptyStackException if the stack is empty. */
+   public T peek();
+  
+   /** Detects whether this stack is empty.
+       @return  True if the stack is empty. */
+   public boolean isEmpty();
+  
+   /** Removes all entries from this stack. */
+   public void clear();
+   
+} // end StackInterface