/入住import java
*;import javaawt
* ;import javaxswing
*;import javax
swinborder
Border;import javax
swLngtext
;public class A1 extends JFrame implements WindowListener {/定义各个组件JFrame frame = new JFrameA(住系统”);JLabel nameLabel = new JLabe” 客户姓名");JLabel idtifyLabel = new JL’ab 身 l 价证号”);JLabel roomLabel = new JLabe 入住房号”);JLabel moneyLabel = new JLabe"应付金额”);JTextField nameField = new JTextFGMdJTextField idtifyField= new JTextF)eld(JTextField roomField= new JTextFiel;d()JTextField moneyField= new JTextField()JButton buttonibutton
/*public static void main(String) args[{A1 al = new A1();al
go();}*/public void gb(UpperCaseDocument ucDocument = new UpperCaseDocument();nameField
setDocument(ucDocumen;)nameField
setForegrouKcColor
black;//frame
addWindowListen(rthi§ ;nameField addAction