将按钮和标签添加到JPanel中，然后只需使JPanel不可见即可通过一次调用将其全部隐藏.

Add your buttons and labels to a JPanel and then you can simply make your JPanel invisible to hide them all with one call.

jPanel.setVisible(false);

或者，将按钮和标签添加到JComponent列表，然后遍历它:

Alternatively, add your buttons and labels to a JComponent list, and then loop through it:

List<JComponent> list = new ArrayList<JComponent>();
list.add(button);
list.add(label);
for(JComponent c : list){
    c.setVisible(false);
}