在java中按下一个按键的多个动作

时间:2012-12-18 14:25:24

标签: java swing keylistener cardlayout

我正在尝试创建一个简单的登录系统,我希望用户能够在他们点击输入按钮时继续下一部分,并且我设法让它在注册部分工作,这样当用户已完成输入他们的详细信息,他们可以点击进入,程序进入下一部分,但我想要它,以便当用户输入他们的登录详细信息时,他们可以按Enter键,然后程序将执行代码的下一部分。 / p>

    card3 = new JPanel();
    usernameFieldone = new JTextField(10);
    usernameLabel = new JLabel("Username:");
    usernameLabel.setLabelFor(usernameFieldone);
    passwordFieldone = new JPasswordField(10);
    passwordLabel = new JLabel("Password:");
    passwordLabel.setLabelFor(passwordFieldone);
    passwordFieldre = new JPasswordField(10);
    passwordLabelre = new JLabel("Confirm Password: ");
    passwordLabelre.setLabelFor(passwordFieldre);
    passwordFieldre.addKeyListener(this);
    OKButton = new JButton("OK");
    OKButton.addActionListener(this);
    backButton = new JButton("Back");
    backButton.addActionListener(this); 

public void keyReleased(KeyEvent e){
    CardLayout cl = (CardLayout)(cards.getLayout());

    if(e.getKeyCode()==KeyEvent.VK_ENTER){
        if(
        Register();
    }
}`

1 个答案:

答案 0 :(得分:1)

这是一个例子:

(...)
//register a Key listener event
myComponent.addKeyListener(new java.awt.event.KeyAdapter() {
        public void keyPressed(java.awt.event.KeyEvent evt) {
            enter_Pressed(evt);
        }
    });

(...)

private void enter_Pressed(java.awt.event.KeyEvent evt){                                        
    //if ENTER is pressed
    if (evt.getKeyCode() == KeyEvent.VK_ENTER) {
        //do someting
    }
}