Java Date Type

Hi
the difference betn java.sql.Date  and java.Util.Date.  
 java.sql.Date
A thin wrapper around a millisecond value that allows JDBC to identify this as a SQL DATE. A milliseconds value represents the
number of milliseconds that have passed since January 1, 1970 00:00:00.000 GMT.

To conform with the definition of SQL DATE, the millisecond values wrapped by a java.sql.Date instance must be 'normalized' by
setting the hours, minutes, seconds, and milliseconds to zero in the particular time zone with which the instance is associated.

 java.Util.Date.
The class Date represents a specific instant in time, with millisecond precision. Prior to JDK 1.1, the class Date had two additional functions. It allowed the interpretation of dates as year, month, day, hour,
minute, and second values.

I want to generate a new class, and this class extends this java.util.Date class, but I will new some method, for example transfer a value from String to Date, and judge a value if is a Date type.

I generate a new class, and this class extends Date class , in new class, i new some method, at public method strToDate, i use Date.Parse("1999-01-02"), but always throws IllAligement..

Hi,

Is it throwing an exception?
IF yes, what is the exception?

Hi vivexp,
  Yes, it is IllegalArgumentException exception.

the following is code:


package inet.library;
import java.util.Date;

public class NCSDate extends Date
{  

    public NCSDate()
    {
       super(System.currentTimeMillis());
    }
    public NCSDate(int year, int month, int date)
    {
        super(year, month, date, 0, 0, 0);
    }
    public NCSDate(int year, int month, int date, int hrs, int min)
    {
        super(year, month, date, hrs, min, 0);
    }
    public NCSDate(String s)
    {
        super(parse(s));
    }
    public NCSDate StrToDate(String strDate)
    {
//try
//{
//Date.parse(strDate)
//}catch(IllegalArgumentException e)
//{}


//here, will converse the String to Date, but I want to return a NCSDate value.////I don't know how to do it, thank you for helping me.}