java大侠有不解决方法

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){}                }            }        });