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Create an interface for a program that helps a group of people to calculate how much each of them owes for a restaurant meal that looks like the one below. The interface does not need to do anything in response to user clicks. Total: Tip Percentage: Number of People: Check Divider Each person pays: Calculate

Create an interface for a program that helps a group of people to calculate how much each of them owes for a restaurant meal that looks like the one below. The interface does not need to do anything in response to user clicks. Total: Tip Percentage: Number of People: Check Divider Each person pays: Calculate

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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code needs to be written in java? view below

Create an interface for a program that helps a group of people to calculate how much each of them owes for a restaurant meal that looks like the one below. The interface does not need to do anything in response to user clicks. Total: Tip Percentage: Number of People: Check Divider Each person pays: <Enter the above information and press Calculate> Calculate
Transcribed Image Text:Create an interface for a program that helps a group of people to calculate how much each of them owes for a restaurant meal that looks like the one below. The interface does not need to do anything in response to user clicks. Total: Tip Percentage: Number of People: Check Divider Each person pays: <Enter the above information and press Calculate> Calculate
Expert Solution
Step 1
import javax.swing.*;
import java.awt.*;
import java.text.DecimalFormat;

public class RestaurantBillCalculator implements Runnable {
    private JLabel totalLabel, tipLabel, numPeopleLabel, eachPaysLabel;
    private JTextField totalField, tipField, numPeopleField, eachPaysField;
    private JButton calculateButton;

    public void run() {
        // create the components
        totalLabel = new JLabel("Total:");
        tipLabel = new JLabel("Tip Percentage:");
        numPeopleLabel = new JLabel("Number of People:");
        eachPaysLabel = new JLabel("Each person pays:");
        totalField = new JTextField(10);
        tipField = new JTextField(10);
        numPeopleField = new JTextField(10);
        eachPaysField = new JTextField(10);
        eachPaysField.setEditable(false);
        calculateButton = new JButton("Calculate");

        // create the panel
        JPanel panel = new JPanel(new GridLayout(5, 1));
        panel.add(totalLabel);
        panel.add(totalField);
        panel.add(tipLabel);
        panel.add(tipField);
        panel.add(numPeopleLabel);
        panel.add(numPeopleField);
        panel.add(eachPaysLabel);
        panel.add(eachPaysField);

        // create the frame and add the panel
        JFrame frame = new JFrame("Restaurant Bill Calculator");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().add(panel, BorderLayout.CENTER);
        frame.pack();
        frame.setVisible(true);

        // add the button listener
        calculateButton.addActionListener(e -> calculate());

        // add the button to the panel
        panel.add(calculateButton);
    }

    private void calculate() {
        // get the inputs
        double total = Double.parseDouble(totalField.getText());
        double tipPercentage = Double.parseDouble(tipField.getText());
        int numPeople = Integer.parseInt(numPeopleField.getText());

        // calculate the result
        double tipAmount = total * tipPercentage / 100;
        double totalWithTip = total + tipAmount;
        double eachPays = totalWithTip / numPeople;

        // set the result field
        DecimalFormat df = new DecimalFormat("0.00");
        eachPaysField.setText(df.format(eachPays));
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new RestaurantBillCalculator());
    }
}
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