Create a flowchart using Visual Logic to represent the logic of a program that w

Question

Create a flowchart using Visual Logic to represent the logic of a program that will utilize three parallel arrays each with two elements, named the following: price, quantity, and total. You should initilize the values of the elements in the price arrray to 10 and 20. The program should allow the user to enter the quantitiy of each item and store that value in the quantity array, as well as calculate the total of each item and store the result in the total array. The program should be the utilize the total array to display the total of each item. The program should produce the output shown below:

Enter the qunitity of item 1: 15
Enter the quantity of item 2: 25
Total for Item 1: $150.00
Total for Item 2: $500.00

Explanation / Answer

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; public class Retailcalculator extends JFrame{ private JPanel panel; // to reference a panel private JLabel wholeSaleMessageLabel; // to reference a label private JLabel markupMessageLabel; // to reference a label private JLabel retailPriceLabel; // to reference a label private JTextField wholeSalePriceField; // to reference the Whole Sale Price Field private JTextField markUpPercentage; // to reference the Mark Up text field private JTextField retailPrice; // to reference the Retail Price Field private JButton calculateButton; // to reference button private final int WINDOW_WIDTH = 400; // Window Width private final int WINDOW_HEIGHT = 150; // Window Height public static void main(String[] args){ new Retailcalculator(); } public Retailcalculator(){ // set window title setTitle("Retail Price Calculator"); // set widow size setSize(WINDOW_WIDTH, WINDOW_HEIGHT); // tell what to do when the window closes setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // build the panel and add it to the frame buildPanel(); // add the panel to the frame's content pane add(panel); // display the window setVisible(true); } private void buildPanel() { // create a label for the wholesale price wholeSaleMessageLabel = new JLabel("Enter Wholesale Price: "); // create a text field 15 characters wide wholeSalePriceField = new JTextField(15); // create a label for the mark up percentage markupMessageLabel = new JLabel("Enter Mark Up Percentage: "); // create a text field 15 characters wide markUpPercentage = new JTextField(15); // create a button with the capation "Calculate Retail Price" calculateButton = new JButton("Calculate Retail Price"); // add an action listener to the button calculateButton.addActionListener(new CalcButtonListener()); // create a label for the retail price retailPriceLabel = new JLabel("The Retail Price is: $"); // create a text field 15 characters wide for the retail price retailPrice = new JTextField(15); // create a JPanel object and let the panel filed reference it panel = new JPanel(); // add the labels, rext field and button compnenets to the panel panel.add(wholeSaleMessageLabel); panel.add(wholeSalePriceField); panel.add(markupMessageLabel); panel.add(markUpPercentage); panel.add(calculateButton); panel.add(retailPriceLabel); panel.add(retailPrice); /** calculateButton is an action listener class for the Calculate Button*/ } class CalcButtonListener implements ActionListener{ // This method executes when the user clicks on the Calculate Button public void actionPerformed(ActionEvent e) { String wholesaleInput; // to hold user input for wholesale price String markUpInput; // to hold user input for mark up percentage double retailPrice; // declare retail price as a double double wholePrice; // declare wholesale prcie as a double double markUp; // declare markup percentage as a double // get the text entered by the user in the text field box wholesaleInput = wholeSalePriceField.getText(); // convert wholesale text to double wholePrice = Double.parseDouble(wholesaleInput); // get the text entered by the user in the percentage text field markUpInput = markUpPercentage.getText(); // parse out the markup percentage from the percentage text field markUp = Double.parseDouble(markUpInput); // do function to calculate retail price( wholesale * markup) retailPrice = ((wholePrice * markUp) * .01) + wholePrice; // display the results JOptionPane.showMessageDialog(null, retailPrice); } } }

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