import java.awt.Component;
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
public class Main extends JFrame {
public Main() {
DefaultTableModel m = new DefaultTableModel(new Object[][] { { "2", 2, 3 },
{ "1", 4, 5 } }, new Object[] { 1, 2, 3 });
JTable t = new JTable(m);
t.getColumnModel()
.getColumn(0)
.setCellEditor(
new DefaultCellEditor(new JComboBox(new String[] { "1", "2" })));
t.getColumnModel().getColumn(0).setCellRenderer(getCellRenderer());
t.setRowHeight(25);
getContentPane().add(new JScrollPane(t));
pack();
}
private TableCellRenderer getCellRenderer() {
return new TableCellRenderer() {
JComboBox<String> box = new JComboBox<>(new String[] { "1", "2" });
@Override
public Component getTableCellRendererComponent(JTable arg0, Object arg1,
boolean arg2, boolean arg3, int arg4, int arg5) {
box.setSelectedItem(arg1);
return box;
}
};
}
public static void main(String[] args) throws InterruptedException {
Main ex = new Main();
ex.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
ex.setVisible(true);
}
}
【jcombobox】
