如何让JTextField响应回车键 [英] How to get a JTextField to respond to the enter key

问题描述

所以我希望得到一个JTexField，当按下回车键并将光标放入其中时，将文本放入JTextArea中。任何人都可以帮忙吗？

So I want to get a JTexField to put the text in it into a JTextArea when the enter key is pressed with the cursor in it. Can anyone help?

推荐答案

忘记使用 KeyListener 获取 Swing 组件。

此侦听器设计用于 AWT 组件不为 JTextComponents 。

This listener was designed for use with AWT components does not provide a reliable interaction mechanism for JTextComponents.

使用 ActionListener 代替 - 绝大多数系统上 ActionEvent JTextField 将调度c $ c>。

Use an ActionListener instead - on the vast majority of systems an ActionEvent is dispatched by the JTextField when enter is pressed.

myTextField.addActionListener(new ActionListener() {

    @Override
    public void actionPerformed(ActionEvent e) {
       myTextArea.append(myTextField.getText() + "\n");
    }
});

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