BoggleData.txt: D R L X E I C P O H S A N H N L Z R W T O O T A I O S S E T N W
ID: 3847211 • Letter: B
Question
BoggleData.txt:
D R L X E I
C P O H S A
N H N L Z R
W T O O T A
I O S S E T
N W E G H E
B O O J A B
U I E N E S
P S A F K F
I U N H M Qu
Y R D V E L
V E H W H R
I O T M U C
T Y E L T R
S T I T Y D
A G A E E N
Dictionary.txt
just contains a dictionary of words from the boggle dictionary.
Assignment Scope
Adding member variables or instance variable in a class
Generating getters/setters for member variables
Instantiating an instance of a class
Calling a method of a class using the reference object
Using Java API class ArrayList
Reading a data fileUsing a try/catch/finally block to handle exceptions and close resource files
IOException
URISyntaxException
Using Java API class Scanner
Using Java API class URL
Using Java API class File
Saving data from a data file in an ArrayList
Adding method signatures to an interface
Adding a constant to an interface
Implementing an interface
Using the enhanced for loop
Deliverables
To complete this assignment you must submit your compressed Netbeans project to Webcourses.
Tasks and Rubric
Activity
Boggle project
Boggle class
ArrayList of class String // stores data from data file with dice data
String // set to the name of input file “BoggleData.txt”
ArrayList of class String // stores data from data file with dictionary data
String // set to the name of input file “Dictionary.txt”
Instantiate an instance of class ReadDataFile passing the file name variable for file BoggleData.txt as an argument
Call method populateData on the above object
Instantiate an instance of class ReadDataFile passing the file name variable for file Dictionary.txt as an argument
Call method populateData on the above object
Instantiate an instance of class Board passing as arguments method call getData on each of the two ReadDataFile object references from above
Call method populateDice on object reference of class Board
Output to the IDE output window the number of objects in the ArrayList of type String that stores the dictionary data
core package
IBoard interface
NUMBER_OF_DICE equal to value 16
GRID equal to value 4
populateDice with return type void and an empty parameter list
shakeDice with return type ArrayList and an empty parameter list
Board class
TIP: Use Netbeans right click menu, Insert Code, Implement Method to have the IDE generate the methods for you; you will replace the throw exception statements with the source code you write
ArrayList of class String // stores dice data
ArrayList of class String // stores dictionary data
ArrayList of class Die // stores 16 game dice
Set the member variable of type ArrayList of class String that stores the Boggle data equal to the associated parameter in the method signature
Set the member variable of type ArrayList of class String that stores the dictionary data equal to the associated parameter in the method signature
Instantiate the member variable of type ArrayList of class Die.
Declare a variable of type class Die
Declare and initialize a variable of type int to serve as a counter to access the data in the member variable of type ArrayList of type String storing the Boggle data
Instantiate the instance of class Die using the default no-argument constructor
Add each of the 6 letters to the Die ArrayList representing the die letters by calling method addLetter in class Die
Display the letters of each die by calling method displayLetters() in class Die on a separate row
Add each die instance to the ArrayList declared specifically for class Die
IDie interface
NUMBER_OF_SIDES equal to value 6
rollDie with return type String and an empty parameter list
addLetter with a return type of void and one parameter of type String representing one of the six letters on the die
displayLetters with a return type of void and an empty parameter list
Die class
TIP: Use Netbeans right click menu, Insert Code, Implement Method to have the IDE generate the methods for you; you will replace the throw exception statements with the source code you write
ArrayList // stores dice data for the sides of the die
TIP: member variables should have an access level modifier of private to protect the data
Add the parameter to the ArrayList representing the letters on the die
Use an enhanced for loop to output the letter on each of the six sides of the die
inputOutput package
IReadDataFile interface
Create interface IReadDataFile
populateData with no return type and an empty parameter list
ReadDataFile class
TIP: Use Netbeans right click menu, Insert Code, Implement Method to have the IDE generate the methods for you; you will replace the throw exception statements with the source code you write
Scanner // for reading the file
String // for storing the file name
ArrayList of class String // for storing the data from the file
TIP: member variables should have an access level modifier of private to protect the data
Set the member variable of type String for storing the file name equal to the parameter
Instantiate the member variable of type ArrayList
TIP: Use the IDE right click menu, Refactor, Encapsulate Fields and select just getter for the member variable of focus
TIP: this is a unique implementation, to instantiate the instance set the URL variable equal to static method call getClass().getResource()
Instantiate an instance of class File using the URL created above
TIP: pass as an argument to the constructor the reference object of the URL instance with method call .toURI()
Add to the ArrayList representing the data in the file each value read from the data file
userInterface package
Boggle application
Test Case 1
Test Case 1 passes
Test Case 2
Test Case 2 passes
Test Case 3
Test Case 3 passes
Source compiles with no errors
Source runs with no errors
Source includes comments
Total
Perform the following test cases
Test Cases
Action
Expected outcome
Test Case 1
Project view
Completed project view should look like figure 1
Test case 2
Run application
displayLetters should look like figure 2
Test case 3
Run application
Size of ArrayList storing dictionary data should be similar to figure 3
Figure 1 Output from method displayLetters
Die 1: D R L X E I
Die 2: C P O H S A
Die 3: N H N L Z R
Die 4: W T O O T A
Die 5: I O S S E T
Die 6: N W E G H E
Die 7: B O O J A B
Die 8: U I E N E S
Die 9: P S A F K F
Die 10: I U N H M Qu
Die 11: Y R D V E L
Die 12: V E H W H R
Die 13: I O T M U C
Die 14: T Y E L T R
Die 15: S T I T Y D
Die 6: A G A E E N
Figure 2 Output for number of entries in the Dictionary.txt file
There are 62406 entries in the dictionary.
Activity
Boggle project
Boggle class
Create member variables of type:ArrayList of class String // stores data from data file with dice data
String // set to the name of input file “BoggleData.txt”
ArrayList of class String // stores data from data file with dictionary data
String // set to the name of input file “Dictionary.txt”
Method main() should:Instantiate an instance of class ReadDataFile passing the file name variable for file BoggleData.txt as an argument
Call method populateData on the above object
Instantiate an instance of class ReadDataFile passing the file name variable for file Dictionary.txt as an argument
Call method populateData on the above object
Instantiate an instance of class Board passing as arguments method call getData on each of the two ReadDataFile object references from above
Call method populateDice on object reference of class Board
Output to the IDE output window the number of objects in the ArrayList of type String that stores the dictionary data
core package
IBoard interface
Add constant fields:NUMBER_OF_DICE equal to value 16
GRID equal to value 4
Add method signatures:populateDice with return type void and an empty parameter list
shakeDice with return type ArrayList and an empty parameter list
Board class
Update the class so that it implements interface IBoardTIP: Use Netbeans right click menu, Insert Code, Implement Method to have the IDE generate the methods for you; you will replace the throw exception statements with the source code you write
Add member variable of type:ArrayList of class String // stores dice data
ArrayList of class String // stores dictionary data
ArrayList of class Die // stores 16 game dice
Add a custom constructor with two parameters of type ArrayList of class String; it should do the followingSet the member variable of type ArrayList of class String that stores the Boggle data equal to the associated parameter in the method signature
Set the member variable of type ArrayList of class String that stores the dictionary data equal to the associated parameter in the method signature
Instantiate the member variable of type ArrayList of class Die.
Implement method populateDice; the method should do the following:Declare a variable of type class Die
Declare and initialize a variable of type int to serve as a counter to access the data in the member variable of type ArrayList of type String storing the Boggle data
Loop through the 16 dice (use the constant NUMBER_OF_DICE as your terminating condition):Instantiate the instance of class Die using the default no-argument constructor
For each Die instance, loop through the six sides of the die (use the constant NUMBER_OF_SIDES as your terminating condition):Add each of the 6 letters to the Die ArrayList representing the die letters by calling method addLetter in class Die
Display the letters of each die by calling method displayLetters() in class Die on a separate row
Add each die instance to the ArrayList declared specifically for class Die
IDie interface
Add constant field:NUMBER_OF_SIDES equal to value 6
Add method signatures:rollDie with return type String and an empty parameter list
addLetter with a return type of void and one parameter of type String representing one of the six letters on the die
displayLetters with a return type of void and an empty parameter list
Die class
Update the class so that it implements interface IDieTIP: Use Netbeans right click menu, Insert Code, Implement Method to have the IDE generate the methods for you; you will replace the throw exception statements with the source code you write
Add member variable of type:ArrayList // stores dice data for the sides of the die
TIP: member variables should have an access level modifier of private to protect the data
Implement method addLetter; the method should:Add the parameter to the ArrayList representing the letters on the die
Implement method displayAllLetters; the method should:Use an enhanced for loop to output the letter on each of the six sides of the die
inputOutput package
IReadDataFile interface
Create interface IReadDataFile
Add method signature:populateData with no return type and an empty parameter list
ReadDataFile class
Update the class so that it implements interface IReadDataFileTIP: Use Netbeans right click menu, Insert Code, Implement Method to have the IDE generate the methods for you; you will replace the throw exception statements with the source code you write
Add member variables using the specified data types:Scanner // for reading the file
String // for storing the file name
ArrayList of class String // for storing the data from the file
TIP: member variables should have an access level modifier of private to protect the data
Add a custom constructor that receives one parameter of type String representing the name of the data file to read; it should do the following:Set the member variable of type String for storing the file name equal to the parameter
Instantiate the member variable of type ArrayList
Add a getter for the ArrayList member variable that stores the data read from the data fileTIP: Use the IDE right click menu, Refactor, Encapsulate Fields and select just getter for the member variable of focus
Implement method populateData; it should do the following:Instantiate an instance of Java API class URL passing as an argument member variable representing the file name of the data fileTIP: this is a unique implementation, to instantiate the instance set the URL variable equal to static method call getClass().getResource()
Instantiate an instance of class File using the URL created above
Initialize member variable of type Scanner based on the File instance created aboveTIP: pass as an argument to the constructor the reference object of the URL instance with method call .toURI()
Loop through the data file until the endAdd to the ArrayList representing the data in the file each value read from the data file
userInterface package
Boggle application
Test Case 1
Test Case 1 passes
Test Case 2
Test Case 2 passes
Test Case 3
Test Case 3 passes
Source compiles with no errors
Source runs with no errors
Source includes comments
Total
Explanation / Answer
Boggle.java
import java.util.ArrayList;
import java.util.Scanner;
import java.io.*;
public class Boggle
{
ArrayList<String> diceData;
String diceFileName = "BoggleData.txt";
ArrayList<String> dictionaryData;
String dictFileName = "Dictionary.txt";
public static void main(String a[]) throws FileNotFoundException
{
Boggle bg = new Boggle();
ReadDataFile rdfBoggle = new ReadDataFile(bg.diceFileName);
rdfBoggle.populateData();
ReadDataFile rdfDict = new ReadDataFile(bg.dictFileName);
rdfDict.populateData();
Board board = new Board(rdfBoggle.getData(),rdfDict.getData());
board.populateDice();
//output no.of objects in ArrayList<String> dictionaryData
}
}
IBoard.java
import java.util.ArrayList;
public interface IBoard
{
final int NUMBER_OF_DICE = 16;
final int GRID = 4;
void populateDice();
ArrayList shakeDice();
}
Board.java
import java.util.ArrayList;
public class Board implements IBoard
{
ArrayList<String> diceData;
ArrayList<String> dictionaryData;
ArrayList<Die> dieStore;
public Board(ArrayList<String> diceData,ArrayList<String> dictionaryData)
{
this.diceData = diceData;
this.dictionaryData = dictionaryData;
this.dieStore = new ArrayList<Die>();
}
public void populateDice()
{
Die die;
int index,temp=0;
for(index=0;index<NUMBER_OF_DICE;index++)
{
die = new Die();
for(int i=0;i<die.NUMBER_OF_SIDES;i++)
{
die.addLetter(diceData.get(temp++));
}
System.out.print("Die "+(index+1)+": ");
die.displayLetters();
dieStore.add(die);
}
}
public ArrayList shakeDice()
{
return new ArrayList();
}
}
IDie.java
public interface IDie
{
final int NUMBER_OF_SIDES = 6;
String rollDie();
void addLetter(String letter);
void displayLetters();
}
Die.java
import java.util.ArrayList;
public class Die implements IDie
{
private ArrayList<String> diceData = new ArrayList<String>();
public String rollDie()
{
return "";
}
public void addLetter(String letter)
{
diceData.add(letter);
}
public void displayLetters()
{
for(String letter:diceData)
System.out.print(letter+" ");
System.out.println();
}
}
IReadDataFile.java
public interface IReadDataFile
{
void populateData();
}
ReadDataFile.java
import java.util.Scanner;
import java.util.ArrayList;
import java.net.URL;
import java.net.URISyntaxException;
import java.io.*;
public class ReadDataFile implements IReadDataFile
{
private Scanner input;
private String fileName;
private ArrayList<String> fileData;
public ReadDataFile(String fileName)
{
this.fileName = fileName;
fileData = new ArrayList<String>();
}
public ArrayList<String> getData()
{
return fileData;
}
public void populateData()
{
URL url;
File file=null;
try
{
url = getClass().getResource(fileName);
file = new File(url.toURI());
input = new Scanner(file);
while(input.hasNextLine())
{
String line = input.nextLine();
String letters[] = line.split(" ");
for(String letter:letters)
fileData.add(letter);
}
}
catch(URISyntaxException e)
{
System.out.println("Exception in URI");
}
catch(IOException e)
{
System.out.println("Exception in input data file");
}
}
}