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Andrews [41]
2 years ago
13

Which statement describes a difference between front-end and back-end databases?

Computers and Technology
2 answers:
anastassius [24]2 years ago
8 0

Answer:

B is the answer

Explanation:

Some one in the first response said it not me but he just saved me from a C

Westkost [7]2 years ago
6 0

Answer:

So a statement could be the front-end is what we see and the back-end is what we don't see, the behind the scenes. Like a play, we see the characters and them acting out a story but we dont see who is doing the lights, playing the music, fixing the costumes and makeup etc..

Explanation:

The term front-end means interface while the term back-end means server. So imagine you go on your social media app, what you can see like your friends list and your account and the pictures you post, who liked the pictures and all of that is called the front-end and is what <em>you</em> as a user can interact with; front-end development is the programming that focuses on the visual aspect and elements of a website or app that a user will interact with its called in other words the client side. Meanwhile, back-end development focusing on the side of a website users can't see otherwise known as the server side, its what code the site uses and what it does with data and how a server runs and interacts with a user on whatever device surface they're using.

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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;

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this.loanAmount = loanAmount;

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//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();

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//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

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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.

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subStage.setScene(scene);

subStage.setTitle("ServerLoan");

subStage.show();

}

}

}

Kindly check the Output in the attached image below.

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