如何为一个JButton添加快捷键？

Question

setMnemonic(int mnemonic)
          Sets the keyboard mnemonic on the current model.

Answer 1

这种设置快捷键必须同时按上Ctrl键
很不方便
给你个设置单键快捷键的实例，自个调用一下就明白了
import javax.swing.*;
import java.awt.*;
import com.borland.jbcl.layout.*;
import javax.swing.border.*;
import java.awt.event.*;
/**
 * 作者：alphazhao
 * 日期：2002-5-29
 * 描述：确定修改备注时，弹出此确定窗口
 * 其它：相关注释说明同ShowSelectByName.java
 * */public class ShowUpdateMsg extends JDialog {
  private TitledBorder titledBorder1;
  private String strMsg;
  private Font font14 = new Font("Dialog", 0, 14);
  private JPanel jPanel1 = new JPanel();
  private XYLayout xYLayout1 = new XYLayout();
  private JLabel jLabel1 = new JLabel();
  private JButton jButton1 = new JButton();
  private JButton jButton2 = new JButton();
  
  public ShowUpdateMsg(Dialog owner, boolean modal) {
    super(owner,modal);
    try {
      this.setTitle("系统提示");
      this.setResizable(false);
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    jPanel1.setLayout(xYLayout1);
    jLabel1.setFont(font14);
    jLabel1.setText("是否确定要修改记录？");    jButton1.setFont(font14);
    jButton1.setText("确  定");    jButton2.setFont(font14);
    jButton2.setText("取  消");
    this.setSize(350,130);    this.getContentPane().add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jLabel1,    new XYConstraints(94, 22, 221, 35));
    jPanel1.add(jButton1, new XYConstraints(91, 65, 75, 25));
    jPanel1.add(jButton2, new XYConstraints(180, 65, 75, 25));    SymListener symListener = new SymListener();
    jButton1.addActionListener(symListener);
    jButton2.addActionListener(symListener);
    //设置快捷键
    jButton1.registerKeyboardAction(symListener,
      KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0),
        JComponent.WHEN_IN_FOCUSED_WINDOW);
    //确定按钮为回车键"ENTER"
    jButton2.registerKeyboardAction(symListener,
      KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
        JComponent.WHEN_IN_FOCUSED_WINDOW);
    //取消按钮为退出键"Escape"
  }  void jButton1_actionPerformed(ActionEvent e) {
    this.dispose();
  }
  void jButton2_actionPerformed(ActionEvent e) {
    this.dispose();
  }  ///设置快捷键
  class SymListener implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      Object obj = e.getSource();
      if (obj == jButton1) {
        jButton1_actionPerformed(e);
      }
      else if (obj == jButton2) {
        jButton2_actionPerformed(e);
      }
    }
  }
}
//end