What are the 5 systems common to most vehicles?

In this assignment, you will design and create an ArrayList-based application that manages a collection of DVDs. Information abo

sergij07 [2.7K]

Create and design an arraylist based application which manages a DVDs collection.

Explanation:

DVD movie consists of a title, a rating (e.g. PG, R, etc.), and a running time in minutes.

In this project, you will create an application to allow the user to maintain a collection of DVD movies using an array.

When the application starts up, it will read in the DVD data from a text file to initialize the array, if the file is available. If the file is not there, then the program starts with an empty array. If the file is corrupted (has an invalid or missing value), then the program stops its initialization at the point of the error. The data file should contain one DVD per line, with title followed by rating followed by running time in minutes, all separated by commas. You may assume titles are all in uppercase and do not contain commas. For example:

ANGELS AND DEMONS,PG-13,138

STAR TREK,R,127

UP,PG,96

The titles may not be in alphabetical order, but the DVDs should be inserted into the array in alphabetical order.

The application will then allow its user to perform the following operations:

ADD OR MODIFY DVD - The user will be prompted to enter the title, rating and running time (in minutes) for a DVD. If the title is already in the array, then the rating and running time are updated to the supplied values. If the title is not in the array, a DVD is added to the array so that the array is sorted by title. Convert all titles to uppercase only.

REMOVE DVD - The user will be prompted to enter the title of a DVD. If the title is in the array, then the DVD is removed, shifting subsequent DVDs over one position to fill in the gap left by the removed DVD. Again, titles must match exactly (in uppercase).

GET DVDs BY RATING - The user will be prompted to enter a movie rating (e.g. PG). This operation displays a string containing all DVDs matching the given rating in the order that they appear in the DVD collection, separated by newline characters.

GET TOTAL RUNNING TIME - This operation displays the total running time of all DVDs in the collection for the user.

SAVE & EXIT - The user can quit the program, performing an automatic save if the DVD collection has been modified.

Java Files

DVD.java - A class to model a single DVD, including its title, rating and total running time.

DVDCollection.java - A class to model a collection of DVDs using an array.

DVDUserInterface.java - An interface that describes the operation required for any user interface to this DVD collection.

DVDGUI.java - A class that implements the DVDUserInterface interface and provides a graphical user interface to the DVD collection.

DVDConsoleUI.java - A class that implements the DVDUserInterface interface and provides a console user interface to the DVD collection.

DVDManager.java - A class that contains a main method that launches one of the two user interfaces for the user to work with the DVD collection based on the user input.

Complete the DVD class by completing the given methods (constructor, accessors and mutators). Add javadoc comments so you can generate a javadoc documentation file showing how to use this class.

The DVDCollection class uses an array to maintain the collection of DVDs. The DVDs should be stored in alphabetical order based on title starting at position 0 in the array, using adjacent cells. All titles should be stored in uppercase only and are assumed to be unique (no duplicates).

toString - returns a string containing all of the DVDs in the collection, separated by newlines characters, along with the value of numdvds and the length of the DVD array for debugging purposes. The string should be formatted as shown in the example below:

numdvds = 3

dvdArray.length = 7

dvdArray[0] = ANGELS AND DEMONS/PG-13/138min

dvdArray[1] = STAR TREK/R/127min

dvdArray[2] = UP/PG/96min

addOrModifyDVD - given the title, rating and running time of a DVD, add this DVD to the collection if the title is not present in the DVD collection or modify the DVD's rating and running time if the title is present in the collection.insert the DVD so that all DVDs are in alphabetical order by title.

removeDVD - given the title, this method should remove the DVD with this title from the collection if present. The title must match exactly (in uppercase). If no title matches, do not change the collection.

getDVDsByRating - given the rating, this method should return a string containing all DVDs that match the given rating in the order that they appear in the collection, separated by newlines.

getTotalRunningTime - this method should return the total running time of all DVDs in the collection. If there are no DVDs in the collection, return 0.

loadData - given a file name, this method should try to open this file and read the DVD data contained inside to create an initial alphabetized DVD collection.

save - save the DVDs currently in the array into the same file specified during the load operation, overwriting whatever data was originally there.

7 0

3 years ago

What is the basic purpose of the International Space Station that will be completed in 2010?

frosja888 [35]

The best and most correct answer among the choices provided by the question is the third choice "It will be a space laboratory for scientists"

The main purpose of the International Space Station is to provide an international laboratory for experiments within the space environment. Which, despite all our technological advances, is nearly impossible to replicate here on Earth.

I hope my answer has come to your help. God bless and have a nice day ahead!

6 0

3 years ago

How do design elements and color work together on a web page?

KiRa [710]

Answer:

The answer I believe is: 2. Both Enhance visual appeal.

Explanation:

4 0

3 years ago

Server virtualization in windows server 2012 r2 is based on a module called the

alexgriva [62]

Server virtualization in windows server 2012 r2 is based on a module called the hypervisor.

3 0

3 years ago

Write a program that calculates payments for loan system. Implement for both client and Server. - The client sends loan informat

egoroff_w [7]

Answer:

Check the explanation

Explanation:

//Define the class.

public class Loan implements java.io.Serializable {

//Define the variables.

private static final long serialVersionUID = 1L;

private double annualInterestRate;

private int numberOfYears;

private double loanAmount;

private java.util.Date loanDate;

//Define the default constructor.

public Loan() {

this(2.5, 1, 1000);

}

//Define the multi argument constructor.

protected Loan(double annualInterestRate, int numberOfYears,

double loanAmount) {

this.annualInterestRate = annualInterestRate;

this.numberOfYears = numberOfYears;

this.loanAmount = loanAmount;

loanDate = new java.util.Date();

}

//Define the getter and setter method.

public double getAnnualInterestRate() {

return annualInterestRate;

}

public void setAnnualInterestRate(double annualInterestRate) {

this.annualInterestRate = annualInterestRate;

}

public int getNumberOfYears() {

return numberOfYears;

}

public void setNumberOfYears(int numberOfYears) {

this.numberOfYears = numberOfYears;

}

public double getLoanAmount() {

return loanAmount;

}

public void setLoanAmount(double loanAmount) {

this.loanAmount = loanAmount;

}

//Define the method to compute the monthly payment.

public double getMonthlyPayment() {

double monthlyInterestRate = annualInterestRate / 1200;

double monthlyPayment = loanAmount * monthlyInterestRate / (1 -

(Math.pow(1 / (1 + monthlyInterestRate), numberOfYears * 12)));

return monthlyPayment;

}

//Define the method to get the total payment.

public double getTotalPayment() {

double totalPayment = getMonthlyPayment() * numberOfYears * 12;

return totalPayment;

}

public java.util.Date getLoanDate() {

return loanDate;

}

//Define the client class.

public class ClientLoan extends Application {

//Create the server object.

ServerLoan serverLoan;

//Declare the variables.

int y;

double r, a, mp=0, tp=0;

String result,d1;

//Create the button.

Button b = new Button("Submit");

//Define the method stage.

public void start(Stage primaryStage) throws Exception {

TimeZone.setDefault(TimeZone.getTimeZone("EST"));

TimeZone.getDefault();

d1 = "Server Started at " +new Date();

//Create the GUI.

Label l1=new Label("Annual Interest Rate");

Label l2 = new Label("Number Of Years:");

Label l3 = new Label("Loan Amount");

TextField t1=new TextField();

TextField t2=new TextField();

TextField t3=new TextField();

TextArea ta = new TextArea();

//Add the components in the gridpane.

GridPane root = new GridPane();

root.addRow(0, l1, t1);

root.addRow(1, l2, t2, b);

root.addRow(5,l3, t3);

root.addRow(6, ta);

//Add gridpane and text area to vbox.

VBox vb = new VBox(root, ta);

//Add vbox to the scene.

Scene scene=new Scene(vb,400,250);

//Add button click event.

b.setOnAction(value -> {

//Get the user input from the text field.

r = Double.parseDouble(t1.getText());

y = Integer.parseInt(t2.getText());

a = Double.parseDouble(t3.getText());

//Create the loan class object.

Loan obj = new Loan(r, y, a);

//Call the method to compute the results.

mp = obj.getMonthlyPayment();

tp = obj.getTotalPayment();

//Format the results.

result = "Annual Interest Rate: "+ r+"\n"+

"Number of Years: "+y+"\n"+

"Loan Amount: "+a+"\n"+

"monthlyPayment: "+mp+"\n"+

"totalPayment: "+tp;

//Add the result to the textarea.

ta.setText(result);

//Create an object of the server class.

serverLoan = new ServerLoan(this);

});

//Set the scene to the stage.

//Set the stage title.

//Make the scene visible.

primaryStage.setScene(scene);

primaryStage.setTitle("ClientLoan");

primaryStage.show();

}

//Define the main method lauch the application.

public static void main(String args[])

{

launch(args);

}

//Define the server class.

class ServerLoan extends Stage {

//Create the client loan object.

ClientLoan parent;

//Create the stage object.

Stage subStage;

//Create the text area.

TextArea ta = new TextArea();

//Define the constructor.

private ServerLoan(ClientLoan aThis) {

//Get the time in desired timezone.

TimeZone.setDefault(TimeZone.getTimeZone("EST"));

TimeZone.getDefault();

//Format the date with message.

String d2 = "Connected to client at " +new Date();

//Initialize the object.

parent = aThis;

//Add the date and the result to

//the text area.

ta.setText(d1);

ta.appendText("\n"+ d2);

ta.appendText("\n"+result);

//Create the grouppane.

GridPane root = new GridPane();

//Add text area to the group pane.

root.addRow(0, ta);

//Initialise the stage object.

subStage = new Stage();

//Add gridpane to the scene.

Scene scene = new Scene(root, 400, 200);

//Set the scene to the stage.

//Set the stage title.

//Make the scene visible.

subStage.setScene(scene);

subStage.setTitle("ServerLoan");

subStage.show();

}

Kindly check the Output in the attached image below.

4 0

3 years ago

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