Using JavaFX: Write a GUI application for the WebBuy Company that allows a user

Question

Using JavaFX:

Write a GUI application for the WebBuy Company that allows a user to compose the three parts of a complete email message: the “To:”, “Subject:” and “Message:” text. The “To:”, and “Subject:” Text areas should provide a single line for data entry. The “Message:” area should allow multiple lines of input and be able to scroll if necessary to accommodate a long message. The user clicks a button to send the email message.

When the application starts, the text area will display a message listing the options which can be selected. As the user selects and deselects options, the proper additions to that message will be made. Provide a simple error checking to prevent sending and empty message mail. Compile, run, and check the results.

Explanation / Answer

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class JEMail extends JFrame implements ActionListener

{

private JLabel toLabel = new JLabel("To:");

private JTextField toField = new JTextField(24);

private JLabel subjectLabel = new JLabel("Subject:");

private JTextField subjectField = new JTextField(24);

private JLabel messageLabel = new JLabel("Message");

private JButton sendButton = new JButton("Send");

private JTextArea message = new JTextArea(4, 22);

public JEMail()

{

super("WebBuy Company E-Mail");

setSize(370, 270);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Container pane = getContentPane();

FlowLayout flow = new FlowLayout(FlowLayout.RIGHT);

pane.setLayout(flow);

JPanel panel1 = new JPanel();

panel1.add(toLabel);

pane.add(toField);

pane.add(panel1);

JPanel panel2 = new JPanel();

panel2.add(subjectLabel);

panel2.add(subjectField);

pane.add(panel2);

JPanel panel3 = new JPanel();

panel3.add(messageLabel);

message.setLineWrap(true);

message.setWrapStyleWord(true);

JScrollPane scroll = new JScrollPane(message,

JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,

JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

panel3.add(scroll);

pane.add(panel3);

JPanel panel4 = new JPanel();

panel4.add(sendButton);

pane.add(panel4);

sendButton.addActionListener(this);

setContentPane(pane);

}

public static void main(String[] arguments)

{

JEMail email = new JEMail();

email.setVisible(true);

}

public void actionPerformed(ActionEvent event)

{

Object source = event.getSource();

if (source == sendButton)

message.append(" Mail has been sent!");

}

}

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