Date difference !!! urgent !!!

Question

Hi,
I have the following code.
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*,java.util.*,java.text.*" errorPage="" %>
<%
DateFormat df = DateFormat.getDateInstance();
String s1="01/09/2003";
String s2 = "01/10/2003";
Date d1 = new Date(df.parse(s1));
Date d2 = new Date(df.parse(s2));
long a = d1.getTime();
long b = d2.getTime();
out.print(b-a);
%>
This code gives me the following errors. I am not able to fix them. I will be grateful if you can solve my problem. The errors are as follows :
53. Date d1 = new Date(df.parse(s1));
*** Error: Type Date is imported on demand from package java/sql and package java/util.
53. Date d1 = new Date(df.parse(s1));
*** Error: No match was found for constructor "Date(java.util.Date)".
53. Date d1 = new Date(df.parse(s1));
*** Error: Type Date is imported on demand from package java/sql and package java/util.
54. Date d2 = new Date(df.parse(s2));
*** Error: Type Date is imported on demand from package java/sql and package java/util.
54. Date d2 = new Date(df.parse(s2));
*** Error: No match was found for constructor "Date(java.util.Date)".
54. Date d2 = new Date(df.parse(s2));
*** Error: Type Date is imported on demand from package java/sql and package java/util.

Answer 1

You have to define which Date class, you want to use. There exists a java.util.Date and a java.sql.Date class. So you have to reference to the package and the class.
Example:
java.util.Date date1 = ...
or
java.sql.Date date2 = ...
But there is also another problem with your code. There is no constructor with your defined input parameters and you need to use
a try / catch block.
Try this:
DateFormat df = DateFormat.getDateInstance();
String s1="01/09/2003";
String s2 = "01/10/2003";
try {
java.util.Date d1 = df.parse(s1);
java.util.Date d2 = df.parse(s2);
long a = d1.getTime();
long b = d2.getTime();
out.print(b-a);
catch (java.text.ParseException pe) {
print(pe.getMessage());     
Attentions to the difference with the try / catch block and that at the parse method, no new date constructor is used.
so long
ThK