如果是将文字选中的话,可以这样试试void textField1_focusGained(FocusEvent e)
{
textField1.setSelectionStart(0);
textField1.setSelectionEnd(textField1.getText().length());
}
{
textField1.setSelectionStart(0);
textField1.setSelectionEnd(textField1.getText().length());
}
class TextFocusListener extends FocusAdapter{}
在里面重写
public void focusGain(FocusEvent e){}方法,实现你的想法。
在你的JTextField声明后加入addFocusListener(new TextFocusListener());