Javaでの日付選択

Question

Java Swingで将来の日付を選択する最も良い方法は何ですか？私がこれを行うことができる良い自由に利用できるライブラリはありますか？

Answer 1

SwingXライブラリは、私はそれを腸気軽に...それは、すべてのJava Swingであります..大学で2004年に戻って、このコードを書いた優れた日付ピッカー

Answer 2

含め良い成分を多く持っています。私は私の大学のために2500ドルの請求書を払うためのいくつかの発送ソフトウェアを書いた。

import java.io.*; 
import java.util.*; 
import java.text.*; 
import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 
import javax.swing.text.*; 
import javax.swing.table.*; 
import javax.swing.event.*; 
import javax.swing.Timer; 
import sun.audio.*; 

/** 
* This class contains the graphic user interface for the WantaRide application 
*/ 
public class WantaRide extends JFrame implements ActionListener { 

:-) ...........だけ

class NewFileDialog extends JDialog implements ItemListener, ActionListener { 

    /* These are dropdown for the start date */ 
    private JComboBox startYear, startMonth, startDay; 
    /* These are the dropdowns for the end date */ 
    private JComboBox endYear, endMonth, endDay; 
    /* These are all explicit text fields */ 
    private JTextField usernameText, sourceFileText, newFileText; 
    /* These are the actual File objects for the source (Excel file) and new (WantaRide file) */ 
    private File sourceFile = null, newFile = null; 
    /* This is the label for the source file */ 
    private JLabel sourceFileLabel; 
    /* These are password fields for the administrator login and password */ 
    private JPasswordField passwordText, confirmText; 
    /* This is the button to get a file chooser to select the Excel source file */ 
    private JButton sourceFileButton; 
    /* This is the start date used for the date dropdowns */ 
    private Calendar startDate = Calendar.getInstance(); 
    /* This is the end date used for the date dropdowns */ 
    private Calendar endDate = Calendar.getInstance(); 

    /** 
    * This method sets up the New File Dialog window 
    */ 
    public NewFileDialog() { 

     super(WantaRide.this, "New WantaRide File", true); 

     JPanel datesPanel = new JPanel(); 
     datesPanel.setBorder(BorderFactory.createTitledBorder 
      ("Dates of New Semester")); 
     JPanel datesInnerPanel = new JPanel(new GridLayout(2, 4, 10, 10)); 
     JLabel startDateLabel = new JLabel("Start Date: ", SwingConstants.RIGHT); 
     startYear = new JComboBox(); 
     buildYearsList(startYear); 
     startYear.setSelectedIndex(5); 
     startMonth = new JComboBox(); 
     buildMonthsList(startMonth); 
     startMonth.setSelectedIndex(startDate.get(Calendar.MONTH)); 
     startDay = new JComboBox(); 
     buildDaysList(startDate, startDay, startMonth); 
     startDay.setSelectedItem(Integer.toString(startDate.get(Calendar.DATE))); 
     startYear.addItemListener(this); 
     startMonth.addItemListener(this); 
     startDay.addItemListener(this); 
     datesInnerPanel.add(startDateLabel); 
     datesInnerPanel.add(startMonth); 
     datesInnerPanel.add(startDay); 
     datesInnerPanel.add(startYear); 
     JLabel endDateLabel = new JLabel("End Date: ", SwingConstants.RIGHT); 
     endYear = new JComboBox(); 
     buildYearsList(endYear); 
     endYear.setSelectedIndex(5); 
     endMonth = new JComboBox(); 
     buildMonthsList(endMonth); 
     endMonth.setSelectedIndex(endDate.get(Calendar.MONTH)); 
     endDay = new JComboBox(); 
     buildDaysList(endDate, endDay, endMonth); 
     endDay.setSelectedItem(Integer.toString(endDate.get(Calendar.DATE))); 
     endYear.addItemListener(this); 
     endMonth.addItemListener(this); 
     endDay.addItemListener(this); 
     datesInnerPanel.add(endDateLabel); 
     datesInnerPanel.add(endMonth); 
     datesInnerPanel.add(endDay); 
     datesInnerPanel.add(endYear); 
     datesPanel.add(datesInnerPanel, BorderLayout.CENTER); 

     JPanel adminPanel = new JPanel(); 
     adminPanel.setBorder(BorderFactory.createTitledBorder 
      ("Administrator Access")); 
     JPanel adminInnerPanel = new JPanel(); 
     JLabel usernameLabel = new JLabel("Username: ", SwingConstants.RIGHT); 
     JLabel passwordLabel = new JLabel("Password: ", SwingConstants.RIGHT); 
     JLabel confirmLabel = new JLabel("Confirm Password: ", SwingConstants.RIGHT); 
     usernameText = new JTextField("Administrator", 15); 
     usernameText.setEnabled(false); 
     passwordText = new JPasswordField("", 15); 
     confirmText = new JPasswordField("", 15); 
     adminInnerPanel.setLayout(new GridLayout(3, 2)); 
     adminInnerPanel.add(usernameLabel); 
     adminInnerPanel.add(usernameText); 
     adminInnerPanel.add(passwordLabel); 
     adminInnerPanel.add(passwordText); 
     adminInnerPanel.add(confirmLabel); 
     adminInnerPanel.add(confirmText); 
     adminPanel.add(adminInnerPanel, BorderLayout.CENTER); 

     JPanel topPanel = new JPanel(new GridLayout(1, 2, 10, 10)); 
     topPanel.add(datesPanel); 
     topPanel.add(adminPanel); 

     JPanel filePanel = new JPanel(new GridLayout(2, 1, 0, 0)); 
     filePanel.setBorder(BorderFactory.createTitledBorder 
      ("Associated Files")); 
     JPanel sourceFilePanel = new JPanel(); 
     sourceFileLabel = new JLabel("Source File: ", SwingConstants.RIGHT); 
     JPanel sourceButtonPanel = new JPanel(); 
     sourceFileButton = new JButton("Browse..."); 
     sourceFileButton.setActionCommand("SourceFileButton"); 
     sourceFileButton.addActionListener(this); 
     sourceButtonPanel.add(sourceFileButton, BorderLayout.CENTER); 
     sourceFileText = new JTextField("", 80); 
     sourceFileText.setEditable(false); 
     sourceFilePanel.add(sourceFileLabel); 
     sourceFilePanel.add(sourceButtonPanel); 
     sourceFilePanel.add(sourceFileText); 
     JPanel newFilePanel = new JPanel(); 
     JLabel newFileLabel = new JLabel("New File: ", SwingConstants.RIGHT); 
     JPanel newButtonPanel = new JPanel(); 
     JButton newFileButton = new JButton("Browse..."); 
     newFileButton.setActionCommand("NewFileButton"); 
     newFileButton.addActionListener(this); 
     newButtonPanel.add(newFileButton, BorderLayout.CENTER); 
     newFileText = new JTextField("", 80); 
     newFileText.setEditable(false); 
     Dimension dim2 = new Dimension(7, 7); 
     newFilePanel.add(new Box.Filler(dim2, dim2, dim2)); 
     newFilePanel.add(newFileLabel); 
     newFilePanel.add(newButtonPanel); 
     newFilePanel.add(newFileText); 
     filePanel.add(sourceFilePanel); 
     filePanel.add(newFilePanel); 

     JPanel buttonPanel = new JPanel(); 
     JPanel twoButtonsPanel = new JPanel(); 
     JButton okButton = new JButton("Create WantaRide File"); 
     okButton.setActionCommand("OK"); 
     okButton.addActionListener(this); 
     JLabel adviceLabel = new JLabel(" This button may stay depressed for a few seconds. Please be patient."); 
     twoButtonsPanel.add(adviceLabel); 
     twoButtonsPanel.add(okButton); 
     buttonPanel.add(twoButtonsPanel); 

     JPanel bottomPanel = new JPanel(new BorderLayout()); 
     bottomPanel.add("Center", filePanel); 
     bottomPanel.add("South", buttonPanel); 

     JPanel centerPanel = new JPanel(new BorderLayout()); 
     centerPanel.add("Center", topPanel); 
     centerPanel.add("South", bottomPanel); 

     getContentPane().setLayout(new BorderLayout()); 
     Dimension dim = new Dimension(10, 10); 
     getContentPane().add("North", new Box.Filler(dim, dim, dim)); 
     getContentPane().add("West", new Box.Filler(dim, dim, dim)); 
     getContentPane().add("Center", centerPanel); 
     getContentPane().add("East", new Box.Filler(dim, dim, dim)); 
     getContentPane().add("South", new Box.Filler(dim, dim, dim)); 

     pack(); 

     double parentWidth = WantaRide.this.getSize().getWidth(); 
     double parentHeight = WantaRide.this.getSize().getHeight(); 
     double dialogWidth = this.getSize().getWidth(); 
     double dialogHeight = this.getSize().getHeight(); 

     setLocation((int)(parentWidth/2 - dialogWidth/2), 
      (int)(parentHeight/2 - dialogHeight/2)); 

     setResizable(false); 
     setVisible(true); 
    } 

    /** 
    * This method builds the list of years for the start 
    * date and end date of the semester 
    * @param yearsList The combo box containing the years 
    */ 
    private void buildYearsList(JComboBox yearsList) { 

     int currentYear = startDate.get(Calendar.YEAR); 

     for (int yearCount = currentYear - 5; yearCount <= currentYear + 5; yearCount++) 
      yearsList.addItem(Integer.toString(yearCount)); 
    } 

    /** 
    * This method builds the list of months for the start 
    * date and end date of the semester 
    * @param monthsList The combo box containing the months 
    */ 
    private void buildMonthsList(JComboBox monthsList) { 

     monthsList.removeAllItems(); 
     for (int monthCount = 0; monthCount < 12; monthCount++) 
      monthsList.addItem(Const.MONTHS[monthCount]); 
    } 

    /** 
    * This method builds the list of years for the start 
    * date and end date of the semester 
    * @param dateIn The current date, which will be used for 
    * the initial date of the lists 
    * @param daysList The combo box that will contain the days 
    * @param monthsList The combo box that will contain the months 
    */ 
    private void buildDaysList(Calendar dateIn, JComboBox daysList, JComboBox monthsList) { 

     daysList.removeAllItems(); 
     dateIn.set(Calendar.MONTH, monthsList.getSelectedIndex()); 
     int lastDay = startDate.getActualMaximum(Calendar.DAY_OF_MONTH); 

     for (int dayCount = 1; dayCount <= lastDay; dayCount++) 
      daysList.addItem(Integer.toString(dayCount)); 
    } 

    /** 
    * This method is called when a dropdown selection 
    * changes 
    * @param event This occurs when a dropdown changes values 
    */ 
    public void itemStateChanged(ItemEvent event) { 

     if (event.getSource() == startYear && 
      event.getStateChange() == ItemEvent.SELECTED) { 

      int year = Integer.parseInt((String)startYear.getSelectedItem()); 
      startDate.set(Calendar.YEAR, year); 
      startMonth.setSelectedIndex(0); 
      startDate.set(Calendar.MONTH, 0); 
      buildDaysList(startDate, startDay, startMonth); 
      startDate.set(Calendar.DATE, 1); 
     } 
     else if (event.getSource() == startMonth && 
      event.getStateChange() == ItemEvent.SELECTED) { 

      startDate.set(Calendar.MONTH, startMonth.getSelectedIndex()); 
      buildDaysList(startDate, startDay, startMonth); 
      startDate.set(Calendar.DATE, 1); 
     } 
     else if (event.getSource() == startDay && 
      event.getStateChange() == ItemEvent.SELECTED) { 

      int day = Integer.parseInt((String)startDay.getSelectedItem()); 
      startDate.set(Calendar.DATE, day); 
     } 
     else if (event.getSource() == endYear && 
      event.getStateChange() == ItemEvent.SELECTED) { 

      int year = Integer.parseInt((String)endYear.getSelectedItem()); 
      endDate.set(Calendar.YEAR, year); 
      endMonth.setSelectedIndex(0); 
      endDate.set(Calendar.MONTH, 0); 
      buildDaysList(endDate, endDay, endMonth); 
      endDate.set(Calendar.DATE, 1); 
     } 
     else if (event.getSource() == endMonth && 
      event.getStateChange() == ItemEvent.SELECTED) { 

      endDate.set(Calendar.MONTH, endMonth.getSelectedIndex()); 
      buildDaysList(endDate, endDay, endMonth); 
      endDate.set(Calendar.DATE, 1); 
     } 
     else if (event.getSource() == endDay && 
      event.getStateChange() == ItemEvent.SELECTED) { 

      int day = Integer.parseInt((String)endDay.getSelectedItem()); 
      endDate.set(Calendar.DATE, day); 
     } 
    } 

Answer 3

.......... NEWファイルダイアログに続け参考として、ここにJCalendarDemoのスクリーンショットをJCalendarから、これも関連してprojectで使用しています。