How to Create a Popup Form with Multiple JTextFields and JLabels Using JOptionPane?

Using Multiple JTextFields and JLabels to Display a Popup Form

Problem:

A user's requirement is to present a popup form containing at least two JTextFields and JLabels upon button click, but the use of JOptionPane.showInputDialog() is not an acceptable solution.

Answer:

Consider utilizing JOptionPane methods like showInputDialog() or showMessageDialog() despite the number of components.

Additional Considerations:

• The selection of JOptionPane is more dependent on the modality required than on the number of elements displayed.
• By employing the approach described in "Dialog Focus," you can direct focus to a specific component.

Sample Code:

The following code snippet demonstrates the implementation of a popup form using a JPanel, JComboBox, and JTextFields with JOptionPane.

import java.awt.EventQueue;
import java.awt.GridLayout;
import javax.swing.*;

class JOptionPaneTest {

    private static void display() {
        String[] items = {"One", "Two", "Three", "Four", "Five"};
        JComboBox<String> combo = new JComboBox<>(items);
        JTextField field1 = new JTextField("1234.56");
        JTextField field2 = new JTextField("9876.54");
        JPanel panel = new JPanel(new GridLayout(0, 1));
        panel.add(combo);
        panel.add(new JLabel("Field 1:"));
        panel.add(field1);
        panel.add(new JLabel("Field 2:"));
        panel.add(field2);
        int result = JOptionPane.showConfirmDialog(null, panel, "Test",
            JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
        if (result == JOptionPane.OK_OPTION) {
            System.out.println(combo.getSelectedItem()
                + " " + field1.getText()
                + " " + field2.getText());
        } else {
            System.out.println("Cancelled");
        }
    }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                display();
            }
        });
    }
}

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