java - 优雅地忽略按键

我试图忽略JavaTextField中的某些按键。我添加了KeyListener，因为我需要在每次键入字母/数字/符号时触发一个事件。

我不希望按下任何其他按钮时触发事件。为此，我目前正在这样做：

        @Override
        public void keyPressed(KeyEvent arg0) {
            // System.out.println(arg0);
            if (arg0.getKeyCode() != (KeyEvent.VK_ENTER)
                    && arg0.getKeyCode() != (KeyEvent.VK_BACK_SPACE)
                    && arg0.getKeyCode() != (KeyEvent.VK_DELETE)
                    && arg0.getKeyCode() != (KeyEvent.VK_UP)
                    && arg0.getKeyCode() != (KeyEvent.VK_DOWN)
                    && arg0.getKeyCode() != (KeyEvent.VK_LEFT)
                    && arg0.getKeyCode() != (KeyEvent.VK_RIGHT)
                    && arg0.getKeyCode() != (KeyEvent.VK_SHIFT)
                    && arg0.getKeyCode() != (KeyEvent.VK_CAPS_LOCK)
                    && arg0.getKeyCode() != (KeyEvent.VK_PAGE_DOWN)
                    && arg0.getKeyCode() != (KeyEvent.VK_PAGE_UP)
                    && arg0.getKeyCode() != (KeyEvent.VK_SCROLL_LOCK)
                    && arg0.getKeyCode() != (KeyEvent.VK_NUM_LOCK)
                    && arg0.getKeyCode() != (KeyEvent.VK_ESCAPE)) {
                // fire event here
            }

        }

显然这很丑。有什么更好的方法可以做到这一点？

最佳答案

单程

private static final List<Integer> ACCEPTED_KEYS = Arrays.asList(KeyEvent.VK_ENTER, ...);

public void keyPressed(KeyEvent event) {
  if (ACCEPTED_KEYS.contains(event.getKeyCode())
    // do something
}

关于java - 优雅地忽略按键，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/11939804/