数字格式异常
问题描述：
嗨我的代码在保存数据时发生错误。错误是在DATE未来我已采取此日期为毫秒的存取DB.i日期/时间的数据类型也给我的代码，错误下面数字格式异常
Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: "4.5.5255"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:456)
at java.lang.Integer.parseInt(Integer.java:497)
at sanskarwani.saveREGISTRATION1(sanskarwani.java:3667)
at sanskarwani.access$800(sanskarwani.java:31)
at sanskarwani$9.actionPerformed(sanskarwani.java:1224)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
我的代码是：
int len,len1,len2;
int regno= Integer.parseInt(cbregn.getSelectedItem().toString());
if(cbregn.getSelectedItem().toString().equals("")){
JOptionPane.showMessageDialog(null," SELECT THE REGISTRATION NO ");
return;
}
int dt=Integer.parseInt(tdate.getText());
if(tdate.getText().equals(""))
JOptionPane.showMessageDialog(null," ENTER THE DATE ");
// String date=tdate.getText();
// if(date.equals(""))
// JOptionPane.showMessageDialog(null," ENTER THE DATE ");
String nm= cbnm.getSelectedItem().toString();
if(nm.equals("")){
JOptionPane.showMessageDialog(null," ENTER THE NAME ");
return;
}
String place=tfplace.getText();
if(place.equals("")){
JOptionPane.showMessageDialog(null," ENTER THE NATIVE PLACE ");
return;
}
String kul=tfkul.getText();
if(kul.equals("")){
JOptionPane.showMessageDialog(null," ENTER THE NAME OF KUL ");
return;
}
String gotra=tfgotra.getText();
if(gotra.equals("")){
JOptionPane.showMessageDialog(null," ENTER THE GOTRA NAME ");
return;
}
String kswami=tfswami.getText();
if(kswami.equals("")){
JOptionPane.showMessageDialog(null," ENTER THE KULSWAMI NAME ");
return;
}
String raddr=taraddr.getText();
if(raddr.equals("")){
JOptionPane.showMessageDialog(null," ENTER THE RESIDENSIAL ADDRESS ");
return;
}
int pincode=Integer.parseInt(tfpcd.getText());
len1 = tfpcd.getText().length();
if(len1!=7) {
JOptionPane.showMessageDialog(null,"Enter The 7 Digit Pin Code","Error",JOptionPane.ERROR_MESSAGE);
return;
}
int stdcd=Integer.parseInt(tfstdcode.getText());
if(tfstdcode.getText().equals("")){
JOptionPane.showMessageDialog(null," ENTER THE STD CODE ");
return;
}
int tele=Integer.parseInt(tftele.getText());
len2 = tftele.getText().length();
if(len2!=7){
JOptionPane.showMessageDialog(null,"Enter The 7 Digit Telephone No","Error",JOptionPane.ERROR_MESSAGE);
return;
}
int mno=(int) Long.parseLong(tfmno.getText());
len = tfmno.getText().length();
if(len!=10) {
JOptionPane.showMessageDialog(null,"Enter The 10 Digit Mobile No","Error",JOptionPane.ERROR_MESSAGE);
return;
}
String email=tfemail.getText();
if(email.equals(""))
JOptionPane.showMessageDialog(null," ENTER THE EMAIL");
if(email.equals("")) {
tfemail.setText("-");
} else // check if it is a valid email-id
{
int ind = email.indexOf("@");
if (ind != -1) { } else {
JOptionPane.showMessageDialog(null,"Invalid Email Id","Error",JOptionPane.ERROR_MESSAGE);
tfemail.setText("");
tfemail.requestFocus();
return;
}
}
String website=tfweb.getText();
if(website.equals(""))
JOptionPane.showMessageDialog(null," ENTER THE WEBSITE ");
if(website.equals("")) {
tfweb.setText("-");
}
else // check if it is a valid email-id
{
int ind = website.indexOf("www");
if (ind != -1) { } else {
JOptionPane.showMessageDialog(null,"Invalid Website","Error",JOptionPane.ERROR_MESSAGE);
tfweb.setText("");
tfweb.requestFocus();
return;
}
}
String education=tfedu.getText();
if(education.equals("")){
JOptionPane.showMessageDialog(null," ENTER THE EDUCATION DETAILS");
return;
}
String branch=tfbrch.getText();
if(branch.equals("")){
JOptionPane.showMessageDialog(null," ENTER THE BRANCH NAME ");
return;
}
int bdt=Integer.parseInt(tfbdt.getText());
if(tfbdt.getText().equals(""))
// String brthdt=tfbdt.getText();
// if(brthdt.equals(""))
JOptionPane.showMessageDialog(null," ENTER THE BIRTH DATE");
String bloodgrp=(String)cbbldgrp.getSelectedItem();
if(bloodgrp.equals("")){
JOptionPane.showMessageDialog(null," SELECT THE BLOODGROUP");
return;
}
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:wanisamajDB");
Statement stmt=con.createStatement();
String qry= "INSERT INTO Registration1(RegistrationNo,SeniorPerson,NativePlace,Kul,Gotra,KulSwami,ResidensialAddress,PinCode,STDcode,TelephoneNo,MobileNo,Email,Website,Education,Branch,BloodGroup,Date,BirthDate) VALUES('"+regno+"','"+nm+"','"+place+"','"+kul+"','"+gotra+"','"+kswami+"','"+raddr+"','"+pincode+"','"+stdcd+"','"+tele+"','"+mno+"','"+email+"','"+website+"','"+education+"','"+branch+"','"+bloodgrp+"','"+dt+"','"+bdt+"')";
// System.out.println("qry");
// String qry= "INSERT INTO Registration1(RegistrationNo,SeniorPerson,NativePlace,Kul,Gotra,KulSwami,ResidensialAddress,PinCode,STDcode,TelephoneNo,MobileNo,Email,Website,Education,Branch,BloodGroup,Date,BirthDate) VALUES('"+regno+"','"+nm+"','"+place+"','"+kul+"','"+gotra+"','"+kswami+"','"+raddr+"','"+pincode+"','"+stdcd+"','"+tele+"','"+mno+"','"+email+"','"+website+"','"+education+"','"+branch+"','"+bloodgrp+"','"+dt+"','"+bdt+"')";
stmt.executeUpdate(qry);
JOptionPane.showMessageDialog(null,"RECORD IS SAVED SUCCESSFULLY ");
con.close();
}
catch(SQLException eM) {
System.out.println(" "+eM);
JOptionPane.showMessageDialog(null,"RECORD IS NOT SAVED");
}
catch(Exception et)
{
System.out.println("error:"+et.getMessage());
}
答
你试图格式化包含浮点数到整数的字符串格式的小数。
int类型不应该有浮点数。
你可以转换这个字符串到整数：
455255
，但是这不是一个正确的整数：
4.5.5255
试试这个：
string number = "4.5.5255";
number = number.replace(".", "");
Integer.parseInt(number);
答
在execption
第一行：
异常 线程 “AWT-EventQueue的 - 0” java.lang.NumberFormatException：对于 输入字符串： “4.5.5255”
这意味着你正在试图解析4.5.5255这不是一个数。
很难判断代码中的哪一行出现此异常[可能位于sanskarwani.java:3667]。我的意思是在你发布的代码中，我们如何找到第3667行。尝试调试你的代码，并将代码发布到单独发生错误的地方。
你认为4.5.5255是一个整数？ – Ramp 2011-04-09 10:48:22
更改您的标题 - 'NumberFormatException'不是'NullPointerException' – RonK 2011-04-09 11:20:17