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demonstrates the List Component in java GUI

Alert Armadillo answered on December 24, 2023 Popularity 3/10 Helpfulness 1/10

answer demonstrates the List Component in java GUI

demonstrates the List Component in java GUI

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import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;

/**
   This class demonstrates the List Component.
*/

public class ListWindow extends JFrame
{
   private JPanel monthPanel;         // To hold components
   private JPanel selectedMonthPanel; // To hold components
   private JList monthList;           // The months
   private JTextField selectedMonth;  // The selected month
   private JLabel label;              // A message

   // The following array holds the values that will
   // be displayed in the monthList list component.
   private String[] months = { "January", "February",
            "March", "April", "May", "June", "July",
            "August", "September", "October", "November",
            "December" };

   /**
      Constructor
   */

   public ListWindow()
   {
      // Set the title.
      

      // Specify an action for the close button.
       

      // Add a BorderLayout manager.
       

      // Build the month and selectedMonth panels.
       

      // Add the panels to the content pane.
       

      // Pack and display the window.
      pack();
      
   }

   /**
      The buildMonthPanel method adds a list containing
      the names of the months to a panel.
   */

   private void buildMonthPanel()
   {
      // Create a panel to hold the list.
       

      // Create the list.
       

      // Set the selection mode to single selection.
     

      // Register the list selection listener.
       

      // Add the list to the panel.
       
   }

   /**
      The buildSelectedMonthPanel method adds an
      uneditable text field to a panel.
   */

   private void buildSelectedMonthPanel()
   {
      // Create a panel to hold the text field.
      selectedMonthPanel = new JPanel();

      // Create the label.
      label = new JLabel("You selected: ");

      // Create the text field.
      selectedMonth = new JTextField(10);

      // Make the text field uneditable.
      selectedMonth.setEditable(false);

      // Add the label and text field to the panel.
      selectedMonthPanel.add(label);
      selectedMonthPanel.add(selectedMonth);
   }

   /**
      Private inner class that handles the event when
      the user selects an item from the list.
   */

   private class ListListener
                    implements ListSelectionListener
   {
      public void valueChanged(ListSelectionEvent e)
      {
         // Get the selected month.
         String selection =
               (String) monthList.getSelectedValue();

         // Put the selected month in the text field.
         selectedMonth.setText(selection);
      }
   }

   /**
      The main method creates an instance of the
      ListWindow class which causes it to display
      its window.
   */

     public static void main(String[] args)
     {
          new ListWindow();
     }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: lms.uqu.edu.sa

Tags: java list

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Contributed on Dec 24 2023

Alert Armadillo

0 Answers Avg Quality 2/10

demonstrates the List Component in java GUI

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