For example, the following code adds a WindowListener to the JFrame that requests focus for the JTextField when the window is activated.

例如，下列代码将WindowListener添加到J Frame，后者在窗口被激活时为JTextField请求焦点。

youdao

For example, the following code adds a WindowListener to the JFrame that requests focus for the JTextField when the window is activated.

例如，下列代码将WindowListener添加到J Frame，后者在窗口被激活时为JTextField请求焦点。

youdao