import java.awt.Container;
import java.awt.event.WindowEvent;
import java.nio.charset.Charset;
import java.util.Map;
import java.util.SortedMap;

import javax.swing.JFrame;
import javax.swing.JRootPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableModel;

public class CharsetViewer  {
public static void main(String[] args) {
final SortedMap<String, Charset> availableCharsets =
   Charset.availableCharsets();
final Object[] charsetNames = availableCharsets.keySet().toArray();
final String[] columnNames =
   {"NAME", "ENCODE", "REGISTERRED", "ALIASES"};
new JFrame("Charset Viewer") {
   @Override
   protected JRootPane createRootPane() {
       return new JRootPane() {
           @Override
           protected Container createContentPane() {
               return new JScrollPane(new JTable() {
                   @Override
                   protected JTableHeader createDefaultTableHeader() {
                       JTableHeader tableHeader =
                           super.createDefaultTableHeader();
                       tableHeader.setReorderingAllowed(false);
                       return tableHeader;
                   }
                   @Override
                   protected TableModel createDefaultDataModel() {
                       return new AbstractTableModel() {
                           public int getColumnCount() {
                               return columnNames.length;
                           }
                           @Override
                           public String getColumnName(int column) {
                               return columnNames[column];
                           }
                           public int getRowCount() {
                               return charsetNames.length;
                           }
                           public Object getValueAt(int rowIndex,
                               int columnIndex) {
                               Charset charset = availableCharsets.get(
                                   charsetNames[rowIndex]);
                               if (columnIndex == 0) {
                                   return charset.displayName();
                               } else if (columnIndex == 1) {
                                   return charset.canEncode();
                               } else if (columnIndex == 2) {
                                   return charset.isRegistered();
                               } else if (columnIndex == 3) {
                                   return charset.aliases();
                               } else {
                                   return null;
                               }
                           }
                       };
                   }
               });
           }
       };
   }
   @Override
   protected void processWindowEvent(WindowEvent we) {
       super.processWindowEvent(we);
       if (we.getID() == WindowEvent.WINDOW_CLOSING) {
           System.exit(0);
       }
   }
   @Override
   public void frameInit() {
       super.frameInit();
       pack();
   }
}.setVisible(true);
}
}