java代写 | CSE1IOO/CSE4IOO Assignment Specification  

本次java代写是设计面向对象的程序
La Trobe University  
Department of Computer Science & Information Technology  
CSE1IOO/CSE4IOO Assignment Specification  
Semester 2, 2019  
Objectives: the aim of this assignment is to practise analysing a problem in an object-oriented  
manner, and designe and implement an object-oriented solution using JAVA language.  
Due Date: 10:00am Monday October 14th, 2019.  
1
General Information  
General information about the assignment is specified in this section.  
1
.1 Assessment  
This assignment contributes 30% of the final assessment for the subject.  
1
.2 Submission Instruction  
Submit the electronic copy of your assignment via the ‘Online Assignment Submission’ system at  
Alternately, you can also submit directly through the latcs8 server. In the Putty window, type:  
submit IOO <filename>  
Where <filename>is the name of the file you want to submit. You should run this for each file that  
you intend to submit.  
NOTE 1: While you are free to develop the code for this assignment on any operating system, your  
solution must run on the latcs8 system.  
NOTE 2: Please DO NOT zip your source code.  
NOTE 3: You should only submit your .java files.  
NOTE 4: The submission folder will only become available 3 days before the due date.  
Submission after the deadline will incur a penalty of 5% of the final assignment mark per day. If  
you have encountered difficulties that lead to late submission or no submission, you should apply  
for special consideration. No assignment is accepted after 4 days’ delay.  
1
.3 Academic Integrity  
This is an individual assignment. When submitting the assignment, students are required to submit  
their own work only. La Trobe University treats plagiarism seriously. When detected, penalties are  
strictly imposed.  
1
.4 Programming Language  
The program is required to be developed in JAVA.  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 1 of 11  
1
.5 Marking Scheme Overview  
The assignment consists of two parts:  
(1) The core tasks, as shown in sections 3.1 3.6  
(
2) An additional task in section 3.7 (Task 3.7) This is a mandatory task for CSE4IOO students.  
For CSE1IOO students, this task is optional. A maximum of 10% bonus marks will be  
awarded if a CSE1IOO student completes or partially completes the task.  
Assignment marking is based on the following guidelines  
(1) Implementation (Execution of code) (80%) (Do all parts of the program execute correctly?  
Does the program behave according to requirements of the assignment?)  
Note that your program must satisfy the requirement 3.6. Up to 40% of mark deduction will  
be made for submitting a program with a different data structure. This also means any direct  
or indirect decedent classes of Collectioninterface in JAVA API, such as LinkedList<E>,  
ArrayList<E>, Vector<E>or HashSet<E>etc are not allowed in the assignment.  
2) Program Design and Structure (15%) (Does the program solve the problem in a well-  
designed manner?)  
(
(3) Layout and Documentation (5%) (Does the code follow the Coding Standard?)  
1
.6 Execution Test  
The execution test for the assignment is conducted during the lab session in Week 12 (i.e. between  
st th  
1 and 25 October). During the test, your tutor will run the program with you while marking it.  
2
The test will be conducted from the submission area, not from student accounts. Please ensure that  
your code runs on latcs8 before submission.  
2
Problem Description  
WordLink is an English vocabulary game for two players. Players are required to present English  
words in turns, and the first character of the word must be the same as the last character of the  
previous word. For example, while player A and player B are playing the game, if A presents the  
word “grass”, then B has to give a word starting with ‘s’ which is the last character of “grass”. If B  
presents “sunny”, then A needs to supply a word starting with ‘y’. A word cannot be used twice in  
one game. The game continues till one of the players loses. There are four scenarios in which a  
player loses the game. These are  
(
(
(
(
1) the player cannot find a word to continue the game.  
2) the player has presented a word which starts with a different character.  
3) the player has supplied a repeated word.  
4) the spelling of the word is incorrect  
In any case, if one player is lost, then the other player wins the game. A number of examples of the  
game are listed as below.  
Example 1  
(Player A) “grass” – (Player B) “sunny” – (A) “yellow” – (B) “world” – (A) “dog” – (B) “grass”  
The game is ended and Player A wins. This is because “grass” is used twice.  
Example 2  
(Player A) “grass” – (Player B) “sunny” – (A) “yellow” – (B) “world” – (A) “dog” – (B) “out”  
The game is ended and Player A wins. This is because player B is expected to present a word  
starting with ‘g’, therefore “out” is not a proper choice.  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 2 of 11  
Example 3  
Player A) “grass” – (Player B) “sunny” – (A) “yellow” – (B) “world” – (A) “doog”  
(
The game is ended and Player B wins. This is because “doog” is incorrectly spelt.  
In this assignment, you are required to build a program that plays WordLink with a kindergarten  
pupil. The pupil is player A and your program acts as player B.  
A text file (dictionary.txt) containing a set of English words will be provided. You can assume  
that dictionary.txtcontains all English words that a kindergarten pupil may know. Words to be  
used in playing the game must be selected from the file.  
Each game should start by letting player A enter a word. Your program then needs to validate the  
word (ie. if the word is included in dictionary.txt). If the word is invalid, then the game is  
terminated and your program (player B) wins; otherwise your program needs to search the  
dictionary to find and enter a proper word. Your program will then let player A to type a word to  
continue the game. This can go back and forth a number of times till either your program or player  
A wins.  
3
Functional and Non-functional Requirements  
Your program must satisfy the following functional and non-functional requirements.  
3
.1 Menu Driven  
The program should be menu driven. It displays the menu displayed as Figure 1 at the start and  
waits for the player to choose a function.  
WordLink  
A. set the difficulty level  
B. display the dictionary  
C. insert a word to the dictionary  
D. play the game  
E. exit  
Select a function from the menu:  
Figure 1 menu  
If A is selected, it allows the player to set a difficulty level. Details are described in 3.2.  
If B is selected, it displays all words in the dictionary as described in 3.3.  
If C is selected, it inserts a new word into the dictionary as described in 3.4.  
If D is selected, it starts playing the game. Refer to 3.5 for details.  
If E is selected, it saves all changes to dictionary.txt, and terminates the program execution.  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 3 of 11  
3
.2 Set the difficulty level  
Your program should provide two difficulty levels for the game – level 1 and level 2.  
dictionary.txtcontains two sets of words level 1 and level 2 words. When playing at level 2,  
all words in dictionary.txt will be used, while level 1 games use only level 1 words.  
Consequently, level 2 games are more difficult than level 1. At the start of your program execution,  
the difficulty level is 1 by default.  
If the player chooses to set the difficulty level, your program should prompt the player and wait for  
an integer (1 or 2) input. The difficulty level is then set up.  
A sample of dictionary.txtis displayed in figure 2.  
1
ant yes bag who and car cry do zoo dog ear  
my mum eat are eye fat dad win fun go get  
got he had has have her him his hand it  
xmas ice icy jam jar jaw kick key lap leg  
words of level 1  
owl out baby me mug new not old you oil one  
pat pie web why put rat pan say paw was run  
she bye sat sea see sun tea toe too toy two  
use red van we quack wag  
levels  
2
quick arm box way cup day shy did egg fur  
yum may foot gas hop hen ill lid low map  
words of level 2  
nod oak our pea ran saw sad top rub try  
uncle won zero mob pink  
Figure 2 sample of dictionary.txt  
3
.3 Display the dictionary  
If this function is selected, your program displays on the monitor all words in the dictionary  
including those being added). It displays words level by level with lower level at the front. Within  
(
each level, words are displayed alphabetically in an ascending order. They should be displayed 7  
words in a line and 5 lines for a screen. The player can press any key to display the next screen.  
3
.4 Insert a word to the dictionary  
The player can insert a new word into the dictionary. To insert a new word, the player needs to  
provide the word and the difficulty level. Your program must check to ensure the absence of the  
word before adding. If the word is existing, then insertion cannot be performed and the player  
should be informed.  
3
.5 Play the game  
A game starts by your program prompting the player to enter a word. After a word is entered, your  
program checks if the word exists in the dictionary. If it isn’t, then the player loses and the game is  
over. If it is, then your program searches the dictionary and selects the first proper word to continue  
the game. For instance, ifsad”,sat”,saw”, “say”, “sea”, “see”,she”,shy”, “sun are all  
available for selection, your program chooses the first word which is “sad”.  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 4 of 11  
3
.6 The dictionary  
After your program is started, it should read from dictionary.txtto create the dictionary. The  
dictionary in your program must be an array of linked lists shown in Figure 3. Each node represents  
a word and its level. Words must be sorted alphabetically in an ascending order on the linked list. If  
a new word is added, then the word with its level must be inserted to the linked list at a proper  
position.  
dictionary  
A
and  
1
1
ant  
1
are  
1
.
…..  
B
D
baby  
……  
dad  
gas  
sad  
1
.
…..  
G
S
2
.
…..  
2
1
.
…..  
W
wag  
……  
Y
Z
yes  
1
you  
1
1
yum  
2
zero  
2
zoo  
Figure 3 Structure of the dictionary  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 5 of 11  
3
.7 Bonus Task (Mandatory for CSE4IOO students, optional for CSE1IOO)  
Instead of only being able to play against the computer, add a menu option for a two-player game  
and implement its functionality. A sample run of this is at the end of section 6.  
4
Code Segments  
Below are code segments that must be included in your program.  
public class DictionaryNode {  
/
/object of the class represents a single word  
protected String word; // word to be stored  
private int level; // level of the word  
private DictionaryNode next;  
public DictionaryNode(String _word, int _level) {  
/
}
/
/add your implementation for the constructor  
/add any other attributes or methods if needed  
}
public class ListOfNodes {  
/
/
/object of the class represents a linked list of words starting  
/with a specific character.  
private DictionaryNode head = null; //head of the linked list  
/
/add any other attributes or methods if needed  
}
public class Dictionary {  
/
/object of the class represents the whole dictionery  
private ListOfNodes[] data;  
/
/add any other attributes or methods if needed  
}
5
Program Development  
The following is a suggested breakdown for completing this assignment:  
Task 1 Creating the Menu  
Create the menu display, collect user’s input and write a method stub for each menu option. Ensure  
that the correct function is called.  
Task 2 File Handling  
In Task 2, you need to consider all issues related to reading the text file (dictionary.txt) to  
obtain words and their levels. You can simply display contents read from the text file to ensure file  
reading is correctly conducted.  
Task 3 Defining Classes  
In this task, implement major classes for the assignment. This includes the necessary menu and  
interactions with the player for choosing options etc.  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 6 of 11  
Task 4 Linked Lists  
Implement classes required for linked lists and dictionary. Implement methods (such as  
insertInOrder, search etc) which are operations associated with the list and any other methods.  
Thoroughly test your linked list before integrating it into your program.  
6
Sample of Execution  
A sample of the program execution is as follows.  
%
java WordLink  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game  
E exit  
Select a function from the menu: A  
Set the difficulty level  
The current difficulty level is 1. Type the new level: 2  
The difficulty level has now been set as 2.  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game  
E exit  
Select a function from the menu: B  
Display the dictionary  
Level 1  
and ant are baby bag bye car  
cry dad do  
fat fun get go  
has have he her him his ice  
icy it jam jar jaw key kick  
dog ear eat eye  
got had hand  
press a key to continue …  
lap leg me mug mum my  
new  
not oil old one out owl pan  
pat paw pie put quack rat red  
run sat say sea see she sun  
tea toe too toy two use van  
press a key to continue …  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 7 of 11
wag was we  
web who why win  
xmas yes you zoo  
press a key to continue …  
Level 2  
arm box cup day did egg foot  
fur gas hen hop lid ill low  
map may mob nod oak our pea  
pink quick ran rub sad saw shy  
top try uncle way won yum zero  
press a key to continue …  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game  
E exit  
Select a function from the menu: C  
Insert a word to the dictionary  
Enter the word: wear  
Difficulty level: 1  
wear” is inserted.  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game  
E exit  
Select a function from the menu: C  
Insert a word to the dictionary  
Enter the word: quack  
Difficulty level: 2  
quackexists in the dictionary. Insertion aborted.  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 8 of 11  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game  
E exit  
Select a function from the menu: B  
Display the dictionary  
Level 1  
and ant are baby bag bye car  
cry dad do dog ear eat eye  
fat fun get go got had hand  
has have he her him his ice  
icy it jam jar jaw key kick  
press a key to continue …  
lap leg me  
mug mum my  
new  
not oil old one out owl pan  
pat paw pie put quack rat red  
run sat say sea see she sun  
tea toe too toy two use van  
press a key to continue …  
wag was we  
wear web who why  
win xmas yes you zoo  
press a key to continue …  
Level 2  
arm box cup day did egg foot  
fur gas hen hop lid ill low  
map may mob nod oak our pea  
pink quick ran rub sad saw shy  
top try uncle way won yum zero  
press a key to continue …  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 9 of 11  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game  
E exit  
Select a function from the menu: D  
play the game (Level 2)  
Enter a word: tea  
tea and – day  
tea and day yes – sun  
tea and day yes sun new – what  
what” doesn’t exist in the dictionary. You didn’t win.  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game  
E exit  
Select a function from the menu: D  
play the game (Level 2)  
Enter a word: may  
may yes – say  
may yes say you – uncle  
may yes say you uncle ear – red  
may yes say you uncle ear red dad – day  
may yes say you uncle ear red dad day yum – my  
Well done! You win.  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game  
E exit  
Select a function from the menu: E  
Updating dictionary.txt … Bye  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 10 of 11  
A sample of the program execution containing the additional two-player task is as follows.  
%
java WordLink  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game (1 player)  
E exit  
F play the game (2 players)  
Select a function from the menu: f  
Play the game (2 Players – Level 1)  
P1: Enter a word: has  
P2: – has – see  
P1: – has – see ear  
P2: – has – see ear run  
P1: – has – see ear run now  
now” isn’t in the level 1 dictionary!  
-Player two wins!–  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game (1 player)  
E exit  
F play the game (2 players)  
Select a function from the menu: F  
Play the game (2 Players – Level 1)  
P1: Enter a word: wag  
P2: – wag – go  
P1: – wag – go oil  
P2: – wag – go oil line  
line” isn’t in the level 1 dictionary!  
-Player one wins!–  
WordLink  
A set the difficulty level  
B display the dictionary  
C insert a word to the dictionary  
D play the game (1 player)  
E exit  
F play the game (2 players)  
Select a function from the menu: e  
Updating dictionary.txt … Bye  
CSE1/4IOO Assignment  
Due 10:00 Monday October 14th, 2019  
Page 11 of 11  

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