Java tutorial
import javax.swing.DefaultCellEditor; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JTable; import javax.swing.table.TableColumn; public class Main { public static void main(String args[]) { JFrame frame = new JFrame(); frame.setSize(450, 250); JTable table = new JTable(5, 5); TableColumn testColumn = table.getColumnModel().getColumn(0); JComboBox<String> comboBox = new JComboBox<>(); comboBox.addItem("This"); comboBox.addItem("is"); comboBox.addItem("a"); comboBox.addItem("Sample program"); testColumn.setCellEditor(new DefaultCellEditor(comboBox)); frame.add(table); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } }