e741. 將標簽的焦點置於關聯的文本框上面
阿新 • • 發佈:2018-09-06
nic span pre 文本框 焦點 tdi amp spl related
This example associates a label with a text field using setLabelFor()
. A mnemonic is set on the label. When the mnemonic keystroke is pressed, the text field will gain the focus.
In the following example, when ALT-L is pressed, the text field gains the focus.
// Create text field JTextField textfield = new JTextField(25); // Create label and associate with text field JLabel label = new JLabel("Text Label"); label.setDisplayedMnemonic(KeyEvent.VK_L); label.setLabelFor(textfield);
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e741. 將標簽的焦點置於關聯的文本框上面