生产实习之项目实践图书借阅管理系统设计(二)

生产实习之项目实践图书借阅管理系统设计(二) ;    PressDateLabel;
JTextField BookNameTextField,PressNameTextField,
            AuthorTextField,
            PressDateTextField;
Container c;
JButton ClearBtn,AddBtn,ExitBtn;
public BookAdd()
{
  super("添加书籍信息");
  c=getContentPane();
  c.setLayout(new BorderLayout());
  BookNameLabel=new JLabel("名称",JLabel.CENTER);
  PressNameLabel=new JLabel("出版社",JLabel.CENTER);
  AuthorLabel=new JLabel("作者",JLabel.CENTER);

  PressDateLabel=new JLabel("出版日期",JLabel.CENTER);


  BorrowBookMenu=new JMenu("借书管理");
  BorrowBookMenuItem=new JMenuItem("书籍出借");
  BorrowInfoMenuItem=new JMenuItem("出借信息修改");
  BorrowBookMenu.add(BorrowBookMenuItem);
  BorrowBookMenu.add(BorrowInfoMenuItem);
  BorrowBookMenuItem.addActionListener(this);
  BorrowInfoMenuItem.addActionListener(this);
  MenuB.add(BorrowBookMenu);
public BorrowInfo()
{
  super("修改书籍出借信息");
  c=getContentPane();
  c.setLayout(new BorderLayout());
  panel3=new JPanel();
  panel3.add(TipLabel);
  c.add(panel3,BorderLayout.NORTH);
  BorrowedBookStudentLabel=new JLabel("借阅者姓名",JLabel.CENTER);
  BorrowedBookNameLabel=new JLabel("书名",JLabel.CENTER);
  BorrowedDateLabel=new JLabel("借书日期",JLabel.CENTER);

  BorrowedBookStudentTextField=new JTextField(15);
  BorrowedBookNameTextField=new JTextField(15);
  BorrowedDateTextField=new JTextField(15);

  panel1=new JPanel();
  panel1.setLayout(new GridLayout(4,2));
  panel1.add(BorrowedBookStudentLabel);
  panel1.add(BorrowedBookStudentTextField);
  panel1.add(BorrowedBookNameLabel);
  panel1.add(BorrowedBookNameTextField);
  panel1.add(BorrowedDateLabel);
  panel1.add(BorrowedDateTextField);


  c.add(panel1,BorderLayout.CENTER);
  panel2=new JPanel();
  panel2.setLayout(new GridLayout(1,4));
  ClearBtn=new JButton("清空");
  YesBtn=new JButton("确定");
  UpdateBtn=new JButton("更新");
  CancelBtn=new JButton("取消");
  ClearBtn.addActionListener(this);
  YesBtn.addActionListener(this);
  UpdateBtn.addActionListener(this);
  UpdateBtn.setEnabled(false);
  CancelBtn.addActionListener(this);
  panel2.add(ClearBtn);
  panel2.add(YesBtn);
  panel2.add(UpdateBtn);
  panel2.add(CancelBtn);
  c.add(panel2,BorderLayout.SOUTH);
public BorrowBook()
{
  super("书籍出借");
  c=

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