紧急Column count doesn't match value count at row 1

Question

package reader;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;

import javax.swing.*;

import System_set.dbhelp;

public class reader extends JFrame {
 public JLabel name, age, provename, borrowmax, telephone, provedate, sex,
   job, proveid, effectivedate, pledge, readerid;
 public JTextField name_text, age_text, borrowmax_text, telephone_text,
   provedate_text, job_text, proveid_text, effectivedate_text,
   pledge_text, readerid_text;
 public Choice prove;
 public JRadioButton male, female;
 public JButton button1, button2;
 ButtonGroup fm;
 JFrame f;

 public reader() {
  f = new JFrame();
  f.setSize(640, 310);
  f.setVisible(true);
  f.setResizable(false);
  f.setLayout(null);
  // 背景图片设置
  ImageIcon background = new ImageIcon("images/addreader.png");
  JLabel image = new JLabel(background);
  image.setBounds(0, 0, background.getIconWidth(),
    background.getIconHeight());
  f.add(image);
  // name
  name = new JLabel("姓                    名：");
  name.setBounds(15, 60, 100, 20);
  f.add(name);
  name_text = new JTextField(15);
  name_text.setText("张琪");
  name_text.setBounds(160, 60, 150, 20);
  f.add(name_text);
  // age
  age = new JLabel("年                    龄：");
  age.setBounds(15, 90, 100, 20);
  f.add(age);
  age_text = new JTextField(15);
  age_text.setText("20");
  age_text.setBounds(160, 90, 150, 20);
  f.add(age_text);
  // 有效证件
  provename = new JLabel("有    效    证   件：");
  provename.setBounds(15, 120, 100, 20);
  f.add(provename);
  prove = new Choice();
  prove.add("工作证");
  prove.add("学生证");
  prove.add("身份证");
  prove.add("教师证");
  prove.setBounds(160, 120, 150, 20);
  f.add(prove);
  // 最大借书量
  borrowmax = new JLabel("最 大  借  书  量：");
  borrowmax.setBounds(15, 150, 100, 20);
  f.add(borrowmax);
  borrowmax_text = new JTextField(15);
  borrowmax_text.setText("8");
  borrowmax_text.setBounds(160, 150, 150, 20);
  f.add(borrowmax_text);
  // 电话
  telephone = new JLabel("电                    话：");
  telephone.setBounds(15, 180, 100, 20);
  f.add(telephone);
  telephone_text = new JTextField(15);
  telephone_text.setText("13564595124");
  telephone_text.setBounds(160, 180, 150, 20);
  f.add(telephone_text);
  // 办证日期
  provedate = new JLabel("办    证   日    期：");
  provedate.setBounds(15, 210, 100, 20);
  f.add(provedate);
  provedate_text = new JTextField(15);
  provedate_text.setText("2012-10-21");
  provedate_text.setBounds(160, 210, 150, 20);
  f.add(provedate_text);
  // sex
  sex = new JLabel("性                    别：");
  sex.setBounds(320, 60, 100, 20);
  f.add(sex);
  fm = new ButtonGroup();
  male = new JRadioButton("男", true);
  female = new JRadioButton("女");
  male.setBounds(480, 60, 50, 20);
  female.setBounds(540, 60, 50, 20);
  fm.add(male);
  fm.add(female);
  f.add(male);
  f.add(female);
  // job
  job = new JLabel("职                    业：");
  job.setBounds(320, 90, 100, 20);
  f.add(job);
  job_text = new JTextField(15);
  job_text.setText("学生");
  job_text.setBounds(465, 90, 150, 20);
  f.add(job_text);
  // 证件号码
  proveid = new JLabel("证   件   号   码：");
  proveid.setBounds(320, 120, 100, 20);
  f.add(proveid);
  proveid_text = new JTextField(15);
  proveid_text.setText("1234567894561");
  proveid_text.setBounds(465, 120, 150, 20);
  f.add(proveid_text);
  // 会员证有效日期
  effectivedate = new JLabel("会员证有效日期：");
  effectivedate.setBounds(320, 150, 110, 20);
  f.add(effectivedate);
  effectivedate_text = new JTextField(15);
  effectivedate_text.setText("2013-10-21");
  effectivedate_text.setBounds(465, 150, 150, 20);
  f.add(effectivedate_text);
  // 押金
  pledge = new JLabel("押                    金：");
  pledge.setBounds(320, 180, 100, 20);
  f.add(pledge);
  pledge_text = new JTextField(15);
  pledge_text.setText("20");
  pledge_text.setBounds(465, 180, 150, 20);
  f.add(pledge_text);
  // 读者编码
  readerid = new JLabel("读   者    编   码：");
  readerid.setBounds(320, 210, 100, 20);
  f.add(readerid);
  readerid_text = new JTextField(15);
  readerid_text.setText("123456779625");
  readerid_text.setBounds(465, 210, 150, 20);
  f.add(readerid_text);
  // 按钮
  button1 = new JButton("保存");
  button1.setBounds(250, 240, 60, 20);
  f.add(button1);

  button1.addActionListener(new ActionListener() {

   public void actionPerformed(ActionEvent e) {
    DefaultButtonModel model = (DefaultButtonModel) male.getModel();
    String sexselect = null;
    if (model.getGroup().isSelected(model))
     sexselect = male.getText();
    else
     sexselect = female.getText();
    System.out.print(sexselect);
    
    String sql = "insert into reader values "
      + "('"
      + readerid_text.getText()
      + "','"
      + name_text.getText()
      + "','"
      + sexselect
      + "','"
      + age_text.getText()
      + "','"
      + job_text.getText()
      + "','"
      + prove.getSelectedItem()
      + "''"
      + proveid_text.getText()
      + "','"
      + telephone_text.getText()
      + "','"
      + borrowmax_text.getText()
      + "','"
      + effectivedate_text.getText()
      + "','"
      + provedate_text.getText()
      + "','"
      + pledge_text.getText() + "')";
    try {
     Statement pstm = dbhelp.xianjie().createStatement();
     pstm.executeUpdate(sql);
    } catch (SQLException e1) {
     e1.printStackTrace();
    }

   }

  });
  button2 = new JButton("取消");
  button2.setBounds(320, 240, 60, 20);
  f.add(button2);
  button1.setText("保存");
  f.setTitle("读者相关信息添加");
  System.out.print( pledge_text.getText().getClass());
 }

 public static void main(String[] args) {
  new reader();
 }

}