Time format viewer : Date Format « Data Type « Java

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Java » Data Type » Date FormatScreenshots 
Time format viewer

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;

public class TimeViewer extends JPanel {
  protected AbstractTableModel tableModel;

  protected Date selectedDate = new Date();

  protected final static Locale[] availableLocales;

  static {
    availableLocales = Locale.getAvailableLocales();

  public final static int LOCALE_COLUMN = 0;

  public final static int SHORT_COLUMN = 1;

  public final static int MEDIUM_COLUMN = 2;

  public final static int LONG_COLUMN = 3;

  public final static int FULL_COLUMN = 4;

  public final static String[] columnHeaders = "Locale""Short""Medium""Long""Full" };

  // Create the window for the Time viewer,
  // and make sure that later components will fit
  public static void main(String[] args) {
    JFrame f = new JFrame("Time Viewer");
    f.getContentPane().add(new TimeViewer());

  public TimeViewer() {
    tableModel = new LocaleTableModel();
    JTable table = new JTable(tableModel);
    add(new JScrollPane(table));


  protected void refreshTable() {
    int style = DateFormat.SHORT;

    DateFormat parser = DateFormat.getTimeInstance(style);
    selectedDate = new Date();

  class LocaleTableModel extends AbstractTableModel {
    public int getRowCount() {
      return availableLocales.length;

    public int getColumnCount() {
      return columnHeaders.length;

    public Object getValueAt(int row, int column) {
      Locale locale = availableLocales[row];
      DateFormat formatter = DateFormat.getInstance();

      switch (column) {
      case LOCALE_COLUMN:
        return locale.getDisplayName();
      case SHORT_COLUMN:
        formatter = DateFormat.getTimeInstance(DateFormat.SHORT, locale);
      case MEDIUM_COLUMN:
        formatter = DateFormat.getTimeInstance(DateFormat.MEDIUM, locale);
      case LONG_COLUMN:
        formatter = DateFormat.getTimeInstance(DateFormat.LONG, locale);
      case FULL_COLUMN:
        formatter = DateFormat.getTimeInstance(DateFormat.FULL, locale);
      return formatter.format(selectedDate);

    public String getColumnName(int column) {
      return columnHeaders[column];

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