Nico Yukiko

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21 Posts 13 Threads 0 Cows

since Aug 24, 2005

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Recent posts by Nico Yukiko

Click on the button

Why should i put the invalidate?? And to call it?
if i place the code below in a shoppingCart servlet
send.println(
"<input type='button' name='empty' value='Empty Cart'> ");

And if i store the item brought in the linklist how can i empty all the things when it goes to another class?

16 years ago

Servlets

Button?

instead of using the submit button below, how can i change button into my image button??
send.println(
"<form name='form1' method='post' action='/Checkout'>");
send.println("<input type='hidden' name='totalPrice' value='" +
totalPrice + "'>");
send.println("<input type='hidden' name='totalQuantity' value='" +
totalQuantity + "'>");
send.println("Email : <input type='text' name='email' value=''>");
send.println("<input type='submit' value='Check Out'>");
send.println("</form>");
}
[ September 14, 2005: Message edited by: Bear Bibeault ]

16 years ago

HTML Pages with CSS and JavaScript

Click on the button

How to link it to the remove method in that class

16 years ago

Servlets

Validating empty string

i wrote if (email==""){
System.out.println("error")
}
but it does not show this is i leave emai as empty???

16 years ago

Beginning Java

Randomly generate a string of number?

but how can i call it in the servlet??
if this is in the same class as the servlet

16 years ago

Beginning Java

Click on the button

When i click on the button remove(<input type=button value='Remove'>

, how can i call the method in the same class as the remove button.

And how can i clear all the product in a shopping cart.

16 years ago

Servlets

Randomly generate a string of number?

how to generate a six digit number?

16 years ago

Beginning Java

Getting the date of today

How can i store the day,month,year into a variable so that i can store it into a database

16 years ago

Beginning Java

Getting the date of today

How to write codes for getting today date

16 years ago

Beginning Java

Array storing

i want to use an array to store the item from database instead of hard coding the item which is shown at the last part of the code.
When i do a System.out.println(itemName + serialNumber+ carModel + listPrice); , it did show the item from database but when i use an array to store it, it does not show the correct output.WHY???

while (rs.next()) {
for (int i = 1; i <= info.getColumnCount(); i++) {
itemName = rs.getString("itemName");
serialNumber = rs.getString("serialNumber");
carModel = rs.getString("carModel");
listPrice = rs.getDouble("listPrice");

items[i]=new Item(itemName, serialNumber,carModel, listPrice);
System.err.println(items[i]);

}

// private static Item[] items =
// { new Item(itemName,
// "<I>"+carModel+"</I> ",
// specifications,44.44),
//
// new Item("11111",
// "Description","This is a decription",49.95)
// };

16 years ago

Beginning Java

Why can i find codes

To login and validate with databse whether is a valid user.Can someone provide the code
tx

16 years ago

Servlets

MSAccess Database

I am using a Database that do not require a user id and password but JSP require us to put those things then wat should i put??
In servlet i use
Connection con=DriverManager.getConnection("jdbc

dbc:mydsn")
and this work.

Connection con=DriverManager.getConnection("jdbc

dbc:mydsn", "jp", "jp");

16 years ago

JSP

My code below don't validate from the database whether it is a valid user.WHY??It just print the Hi and the name.???

import javax.servlet.*;
import java.io.*;
import javax.servlet.http.*;
import java.sql.*;
public class Login
extends HttpServlet {
String email, password;
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, java.io.IOException {
PrintWriter send=response.getWriter();
response.setContentType("text/html");
email = request.getParameter("emailID");
password = request.getParameter("password");
send.println("<html><body>");
send.println("<h2>Hi " + email + "</h2><br>");
send.println("</body></html>");
check(send,email,password);
// send.close();
//
}
public void check(PrintWriter send,String email,String password){
try {
// load the jdbc-odbc driver using the forName( ) in Class class
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
}
catch (ClassNotFoundException e) {
System.err.println("Error" + e);
}
try {
/* Create the Connection object, conn, using the getConnection( ) in DriverManager class */
Connection conn = DriverManager.getConnection("jdbc:odbc:Customer");
/* Create the Statement object, stmt, using the createStatement( ) of the exiting conn object. */
Statement stmt = conn.createStatement();
String sqlStr = "Select * from Customers where email= '"+ email + "' AND password= '"+ password +"'";
ResultSet rs = stmt.executeQuery(sqlStr);
if (rs.next()){
send.println("<html><body>");
send.println(email);
send.println("</body></html>");}
else{
send.println("<html><body>");
send.println("no");
send.println("</body></html>");
send.close();
}
}
catch (SQLException e) {
e.printStackTrace();
}
//
}
}

(Marilyn added code tags)
[ September 01, 2005: Message edited by: Marilyn de Queiroz ]

16 years ago

Servlets

Creating an array to store variable

Actually this is a asp.net language.i am converting it into a java language.Can u help?

16 years ago

Beginning Java

Creating an array to store variable

How to create an array that can store variable.I try to create the code below but it is giving me an error "object reference not set to an instance on an object "

Dim Info As String
Dim arrInfo() As String

For k = 0 To totalRows - 1
Info = lobjDs.Tables("tblMemberApproval").Rows(k).Item("strUserId")
arrInfo(k) = Info
Next

16 years ago

Beginning Java