e741. setting the focus of a jtextfield component using a jlabel component.txt

来自「这里面包含了一百多个JAVA源文件」· 文本 代码 · 共 14 行

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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