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

public class TableRenderDemo extends JFrame {
 	JLabel silt=new JLabel("kokku");

    public TableRenderDemo() {
    	  super("TableRenderDemo");
	     getContentPane().add(silt,BorderLayout.SOUTH);
        MyTableModel myModel = new MyTableModel();
        JTable table = new JTable(myModel);
        table.setPreferredScrollableViewportSize(new Dimension(500, 100));
        JScrollPane scrollPane = new JScrollPane(table);
   
        for(int i=0;i<5;i++){
        		lisaCombo(table.getColumnModel().getColumn(i));
		  }
        getContentPane().add(scrollPane, BorderLayout.CENTER);
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }

    public void lisaCombo(TableColumn tulp) {
        //Set up the editor for the sport cells.
        JComboBox comboBox = new JComboBox();
        comboBox.addItem("O");
        comboBox.addItem("X");      
        tulp.setCellEditor(new DefaultCellEditor(comboBox));
    }

    class MyTableModel extends AbstractTableModel {
        final String[] columnNames = {"AAA", "BBB","CCC","DDD","EEE"};
        final Object[][] data = {
            {"X", "O", "X", "O", "X"},
            {"X", "O", "X", "O", "X"},
            {"X", "O", "X", "O", "X"},
            {"X", "O", "X", "O", "X"},
            {"X", "O", "X", "O", "X"}
        };
        public int getColumnCount() {
            return columnNames.length;
        }
        
        public int getRowCount() {
            return data.length;
        }

        public String getColumnName(int col) {
            return columnNames[col];
        }

        public Object getValueAt(int row, int col) {
            return data[row][col];
        }

        public Class getColumnClass(int c) {
            return getValueAt(0, c).getClass();
        }

        public boolean isCellEditable(int row, int col) {
           return true;
        }

        public void setValueAt(Object value, int row, int col) {
            data[row][col] = value;
            
            int xkokku=0;
            for(int i=0;i<getColumnCount();i++){
            
            	for(int j=0;j<getRowCount();j++){
            		if(((String)data[i][j]).equalsIgnoreCase("X")) xkokku++;
            	}//next j          
            }//next i    
            silt.setText("x kokku: "+xkokku);    
            fireTableCellUpdated(row, col);
                   
        }      
    }//Mudel end

    public static void main(String[] args) {
        TableRenderDemo frame = new TableRenderDemo();
        frame.pack();
        frame.setVisible(true);
    }
}