Java tutorial
import java.awt.BorderLayout; import java.awt.GridLayout; import javax.swing.JComboBox; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.border.TitledBorder; public class Main { public static void main(String[] args) { JTextField account = new JTextField(10); JPanel accountPanel = new JPanel(new GridLayout()); accountPanel.add(account); accountPanel.setBorder(new TitledBorder("Account")); String[] firstDigitList = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" }; JLabel firstDigitListLabel = new JLabel("Leading Digit Change"); JPanel firstDigitListPanel = new JPanel(new BorderLayout(4, 2)); firstDigitListPanel.add(firstDigitListLabel, BorderLayout.WEST); JComboBox firstDigitCombo = new JComboBox(firstDigitList); firstDigitListPanel.add(firstDigitCombo); firstDigitCombo.setSelectedIndex(0); firstDigitListPanel.setBorder(new TitledBorder("LDC")); JPanel panel = new JPanel(); panel.add(accountPanel); panel.add(firstDigitListPanel); int result = JOptionPane.showConfirmDialog(null, panel, "Please Enter Values", JOptionPane.OK_CANCEL_OPTION); } }