Homework Answers

You should create two methods for a data structure implementing a Queue as a

circular array. Your data structure should have the class name MyArrayQueue. The

two methods that should be implemented are:

a) Adding element to the queue:

public void enqueue(Object theElement) {…}

[20 marks]

(Functionality: 15, Design: 2, Ease of use: 2, Presentation: 1)

b) Deleting an element from the queue and return the deleted element:

public Object dequeue() {…}

[10 marks]

(Functionality: 6, Design: 2, Ease of use: 1, Presentation: 1)

In both methods errors should be handled properly. For example what happens

when adding an element to a full queue?

There will be skeleton code for MyArrayQueue available on Learning central that

contains the MyArrayQueue class with the following fully implemented methods:

constructor, isEmpty(), getFrontElement(), getRearElement() methods. It also

includes signatures of two methods that you should implement: enqueue(Object

theElement) & dequeue().

Write a program that simulates the ATM interface.

     Use a do-while loop to display 6 services to the user

     Get the user input and display submenus appropriately

(1) Stop words are high-frequency words that are removed from the representation of

natural language data. Write a method deleteStopwords(input, stopwords) that

deletes a list of words stopwords from some text input. It is up to you whether your

method expects input to be a referring to the source of the text to be processed, or a

String or ArrayList of words; similarly, for the stopwords parameter. However, you

should try to optimise the data structure used. Your method should return an ArrayList

containing the non-stop words identified. Your method should work successfully with

the contents of the input file Input.txt and the stop words listed in the file

stopwords.txt (both files are available on Learning Central).

[15 marks]

(Functionality: 8, Design: 4, Ease of use: 2, Presentation: 1)