import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;

import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.KeyStroke;

public class ActionSample extends AbstractAction {

  
  private final KeyStroke up=KeyStroke.getKeyStroke(KeyEvent.VK_UP,0);
  private final KeyStroke down=KeyStroke.getKeyStroke(KeyEvent.VK_DOWN,0);
  public ActionSample() {
    JFrame frame=new JFrame("测试Action");
    JPanel c=(JPanel)frame.getContentPane();
    
    
    c.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(up,"up");
    c.getActionMap().put("up",this);
    
    c.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(down,"down");
    c.getActionMap().put("down",this);
    frame.setSize(200,200);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
  }

  public static void main(String[] args) {
    new ActionSample();

  }

  public void actionPerformed(ActionEvent e) {
    System.out.println(e.getActionCommand());
    
  }

}

putValue(Action.ACTION_COMMAND_KEY,"action_command");

import java.awt.*;

import javax.swing.*;

/**
 * @ActionSample.java
 * 2006-11-12
 */

/**
 * 例子显示了2个JButton的对象使用了相同的一个Action
 * 但是却出现了不同的结果.
 */
public class ActionSample extends JFrame {

  class ActionTest extends AbstractAction{
    ActionTest(){
      putValue(Action.ACTION_COMMAND_KEY,"UseMothedSetAction");
      putValue(Action.NAME,"使用setAction,将会覆盖掉原来的\"Test1\"标题");
    }
    public void actionPerformed(ActionEvent e) {
      System.out.println(e.getActionCommand());
    }
    
  }
  public ActionSample(){
    super("Action例子");
    Action actionTest = new ActionTest();
    JPanel c=(JPanel)getContentPane();
    c.setLayout(new GridLayout(2,1));

    //注意这里.我为btnTest1定义了"Test1"的标题.
    //但是显示出来的结果却不是.
    JButton btnTest1=new JButton("Test1");
    JButton btnTest2=new JButton("Test2");
    btnTest1.setAction(actionTest);
    //这个方法会把actionTest中的action command内容冲
    //掉,用JButton自己的缺省内容代替.
    btnTest2.addActionListener(actionTest);
    c.add(btnTest1);
    c.add(btnTest2);
    
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setSize(400,200);
    setVisible(true);
  }

  /**
   * @param args
   */
  public static void main(String[] args) {
    // TODO Auto-generated method stub
    new ActionSample();

  }

}