Mega Code Archive
Number format viewer
<![CDATA[
import java.text.NumberFormat;
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 NumberViewer extends JPanel {
protected AbstractTableModel tableModel;
protected double currentValue = 1234567.89d;
protected final static Locale[] availableLocales;
static {
availableLocales = Locale.getAvailableLocales();
}
public final static int LOCALE_COLUMN = 0;
public final static int NUMBER_COLUMN = 1;
public final static int CURRENCY_COLUMN = 2;
public final static int PERCENT_COLUMN = 3;
public final static String[] columnHeaders = { "Locale", "Numeric", "Currency", "Percent" };
public static void main(String[] args) {
JFrame f = new JFrame("Number Viewer");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(new NumberViewer());
f.pack();
f.setVisible(true);
}
public NumberViewer() {
tableModel = new LocaleTableModel();
JTable table = new JTable(tableModel);
add(new JScrollPane(table));
}
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];
NumberFormat formatter = NumberFormat.getNumberInstance();
switch (column) {
case LOCALE_COLUMN:
return locale.getDisplayName();
case NUMBER_COLUMN:
formatter = NumberFormat.getNumberInstance(locale);
break;
case CURRENCY_COLUMN:
formatter = NumberFormat.getCurrencyInstance(locale);
break;
case PERCENT_COLUMN:
formatter = NumberFormat.getPercentInstance(locale);
break;
}
return formatter.format(currentValue);
}
public String getColumnName(int column) {
return columnHeaders[column];
}
}
}
]]>