给jtable添加单选框的代码

以下是给JTable添加单选框的示例代码：

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;

public class JTableWithRadioButtonExample {

    private JFrame frame;
    private JTable table;
    private MyTableModel model;
    private MyCellRenderer renderer;
    private List<Boolean> checkedList;

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    JTableWithRadioButtonExample window = new JTableWithRadioButtonExample();
                    window.frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    public JTableWithRadioButtonExample() {
        initialize();
    }

    private void initialize() {
        frame = new JFrame();
        frame.setBounds(100, 100, 450, 300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        JPanel panel = new JPanel();
        frame.getContentPane().add(panel, BorderLayout.SOUTH);
        
        JButton btnNewButton = new JButton("Check");
        btnNewButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                for (int i = 0; i < checkedList.size(); i++) {
                    System.out.println("Row " + i + ": " + checkedList.get(i));
                }
            }
        });
        panel.add(btnNewButton);
        
        JScrollPane scrollPane = new JScrollPane();
        frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
        
        model = new MyTableModel();
        model.addColumn("Name");
        model.addColumn("Select");
        
        renderer = new MyCellRenderer();
        
        table = new JTable(model) {
            public TableCellRenderer getCellRenderer(int row, int column) {
                if (column == 1) {
                    return renderer;
                } else {
                    return super.getCellRenderer(row, column);
                }
            }
            
            public Class getColumnClass(int column) {
                if (column == 1) {
                    return JCheckBox.class;
                } else {
                    return super.getColumnClass(column);
                }
            }
        };
        scrollPane.setViewportView(table);
        
        checkedList = new ArrayList<Boolean>();
        
        model.addRow(new Object[] {"John", new Boolean(false)});
        checkedList.add(new Boolean(false));
        model.addRow(new Object[] {"Jane", new Boolean(false)});
        checkedList.add(new Boolean(false));
        model.addRow(new Object[] {"Jim", new Boolean(false)});
        checkedList.add(new Boolean(false));
    }
    
    class MyTableModel extends DefaultTableModel {
        
        public boolean isCellEditable(int row, int col) {
            if (col == 1) {
                return true;
            } else {
                return false;
            }
        }
    }
    
    class MyCellRenderer implements TableCellRenderer {
        
        private JCheckBox box;
        
        public MyCellRenderer() {
            box = new JCheckBox();
        }
        
        public Component getTableCellRendererComponent(JTable table,
                Object value,
                boolean isSelected,
                boolean hasFocus,
                int row,
                int column) {
            
            box.setSelected((Boolean)value);
            return box;
        }
    }

}

这段代码会创建一个含有单选框的JTable，并且每个单选框对应一个布尔值，当单选框被选中时，布尔值为true，否则为false。用户可以通过点击按钮来打印所有行的布尔值，以检查哪些单选框被选中了。