boolean flag = false;
    
    public void text(){
        
        String s2 = text2.getText();
        String a2 = "\\w+@\\w+(\\.\\w+)+";
        boolean flag2 = s2.matches(a2);
        String s4 = text4.getText();
        String a4 = "[2]\\d{10}";
        boolean flag4 = s4.matches(a4);
        String s5 = text5.getText();
        String a5 = "\\w{6,10}";
        boolean flag5 = s5.matches(a5);
        
        if(!flag2)
            JOptionPane.showMessageDialog(this,"您输入了非法字符","警告提示框",
            JOptionPane.WARNING_MESSAGE);
        else if(!flag4)
            JOptionPane.showMessageDialog(this,"学号错误!","警告提示框",
            JOptionPane.WARNING_MESSAGE);
        else if(!flag5)
            JOptionPane.showMessageDialog(this,"密码错误!","警告提示框",
            JOptionPane.WARNING_MESSAGE);
        else{
            new login();
            flag = true;
            }
    }
    
    
    public void myevent(){
    
        addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent e){
                setVisible(false);
            }
        });
        
        submit.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
                if(e.getSource()==submit){
                    text();
            //        zhuce();
                    String s1 = text1.getText();
                    String s2 = text2.getText();
                    String s3 = text3.getText();
                    String s4 = text4.getText();
                    String s5 = text5.getText();
                    try{
                        FileWriter fw = new FileWriter("1.txt",true);    
                        if(flag){
                            fw.write(s1+" "+s2+" "+s3+" "+s4+" "+s5+"\r\n");
                            fw.flush();
                            fw.close();
                        }
                    }
                    catch(IOException e1){}
                }
            }
        });