package comboBoxTable;
 
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.table.DefaultTableModel;
 
public class MyFrame extends JFrame{
    /** Creates a new instance of MyFrame */
    MyTable myTable;
    public MyFrame() {
        myTable = new MyTable();
        JScrollPane scrollPane = new JScrollPane(myTable);
        JPanel myPanel = new JPanel();
        myPanel.add(scrollPane);
        JButton addRowButton = new JButton("Add Row");
        addRowButton.addActionListener(new ActionListener() 
		{
			public void actionPerformed(ActionEvent e) 
			{
				addRow();
			}
		});
        myPanel.add(addRowButton);
        getContentPane().add(myPanel);
        setSize(new Dimension(400,400));
        pack();
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }
    public void addRow(){
        Object [] rowData = {"Column 1","ComboBoxItem"};    
        DefaultTableModel myModel = (DefaultTableModel)myTable.getModel();
        myModel.insertRow(myTable.getModel().getRowCount(),rowData);
    }
    public static void main(String[] args) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new MyFrame().setVisible(true);
            }
        });
    }
}
 
 
 
package comboBoxTable;
 
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
 
 
 
public class MyTable extends JTable{
    DefaultTableModel model = new DefaultTableModel();
    
    public MyTable() {
        setModel(model);
        model.addColumn("Column 1");
        model.addColumn("ComboBox");
        String [] items = {"ITEM1","ITEM2"};
        getColumn("ComboBox").setCellEditor(new MyComboBoxEditor());
        getColumn("ComboBox").setCellRenderer(new MyComboBoxRenderer(items));
        setVisible(true);
    }
    
    // Don't need to implement this method unless your table's data can change.
     /*
        public void setValueAt(Object value, int row, int col) { }
      */
    
    public boolean isCellEditable(int row, int column) {
        boolean editable = true;
        if(column < 1){
            editable = false;//only edit combobox
        }
        return editable;
    }
 
}
 
 
package comboBoxTable;
 
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
 
public class MyComboBoxEditor extends DefaultCellEditor {
   // JComboBox comboBox;
    public MyComboBoxEditor(String[] items) {
        super(new JComboBox(items));
    }
    
    public MyComboBoxEditor() {
        super(new JComboBox());
    }
}
 
 
package comboBoxTable;
 
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JComboBox;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
 
public class MyComboBoxRenderer extends JComboBox implements TableCellRenderer {
    public MyComboBoxRenderer(String[] items) {
        super(items);
    }
    public MyComboBoxRenderer() {
        super();
        addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                System.out.println("ComboBox Action Performed");
            }
        });
    }
    public Component getTableCellRendererComponent(JTable table, Object value,
            boolean isSelected, boolean hasFocus, int row, int column) {
        if (isSelected) {
            setForeground(table.getSelectionForeground());
            super.setBackground(table.getSelectionBackground());
        } else {
            setForeground(table.getForeground());
            setBackground(table.getBackground());
        }
        
        // Select the current value
        setSelectedItem(value);
        return this;
    }
}