sellandprint.java

我的JAVA, 不知道好不好,希望你可以改

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.regex.*;

class SellandPrint extends JFrame implements ActionListener
{
 
  SellandPrint(String s)
  {
    super(s);
    setSize(300,350);
    setVisible(true);
    JTextArea bUp=new JTextArea();
    bUp.append("001 sell"+"  "+Number001.thisorder()+"  "+Number001.thisPrice()+"  "+Number001.showsell()+"\n");
    bUp.append("002 sell"+"  "+Number002.thisorder()+"  "+Number002.thisPrice()+"  "+Number002.showsell()+"\n");
    bUp.append("003 sell"+"  "+Number003.thisorder()+"  "+Number003.thisPrice()+"  "+Number003.showsell()+"\n");
    bUp.append("004 sell"+"  "+Number004.thisorder()+"  "+Number004.thisPrice()+"  "+Number004.showsell()+"\n");
    JButton button=new JButton("print");
    button.addActionListener(this);
    new JScrollPane(bUp);
    Container con=getContentPane();
    con.add(bUp,BorderLayout.NORTH);
    con.add(button,BorderLayout.SOUTH);
    con.validate();
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  public void actionPerformed(ActionEvent e)
  {
    int n=JOptionPane.showConfirmDialog(this,"确认要打印吗?","确认对话框",JOptionPane.YES_NO_OPTION);
    if(n==JOptionPane.YES_OPTION)
    {
      System.out.printf("到此为止！");
    }
    else if(n==JOptionPane.NO_OPTION)
    {
      System.out.printf("谢谢合作！");
    }
  }
}