java 复选框 数据库 java复选框事件处理

import java.awt.BorderLayout;
import java.awt.event.KeyEvent;
import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class Main {
public static void main(String args[]) {
JFrame frame = new JFrame("Selecting CheckBox");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JCheckBox checkBox = new JCheckBox("A");
// Define ChangeListener
ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
AbstractButton abstractButton = (AbstractButton) changeEvent.getSource();
ButtonModel buttonModel = abstractButton.getModel();
boolean armed = buttonModel.isArmed();
boolean pressed = buttonModel.isPressed();
boolean selected = buttonModel.isSelected();
System.out.println("Changed: " + armed + "/" + pressed + "/" + selected);
}
};
// Attach Listeners
checkBox.addChangeListener(changeListener);
checkBox.setMnemonic(KeyEvent.VK_S);
frame.add(checkBox, BorderLayout.NORTH);
frame.setSize(300, 100);
frame.setVisible(true);
}
}