i just want to add 30 minutes to the current date obtained as input
so that i can put it ina loop to use it in a group by clause in oracle
if sme one can help me out in identifying fuctions and classes in java api to do this easily it will be very help full
waiting for it....................
I'm sorry, but read the API, that's why it is there.
Date d = new Date(); // starting point
int x = 5; // number of minutes to increment
for (int i = 0; i < 10; i++) { // to increment 10 times
d.setTime(d.getTime() + (x * 60000)); // 60000 milliseconds in one minute
}
And P.S. normally, of course, I would not put all the comments in, but it seemed as though it might be needed in this case.
Edit: And of course, this is only presented as an alternative to the method posted by dmbdmb. Both are valid.
> try this one
>
>Date d = new Date();
>d.setMinutes(25);
Nonsense. First because the Date.setMinutes(int minutes) method is deprecated and has been replaced by Calendar.set(Calendar.MINUTE, int minutes), then because it doesn't match OP's requirement (i.e. add 30 minutes to a given date)
Tim - was it a joke or something..?
i read about gregorian and calendar classes
but still i find problems
let me show u the code
may be then u can help me,
im trying to query the db for every half an hour
and join details in avector that i pass out from this func
Date tempD;
tempD.valueOf(fromBuff.toString());
Date endD;
endD.valueOf(toBuff.toString());
GregorianCalendar GC = GregorianCalendar(tempD.getyear(),tempD.getMonth(),tempD.getDate(),tempD.getHour(),tempD.getMinute(),tempD.getSecond() );
while(!(Date)GC.equals(endD) || !(Date)GC.after(endD))
{
int index1 = index;
stmntCustDetail.setString(index1++,(Date)GC.toString());
GC.add(GregorianCalendar.MINUTE,30);
stmntCustDetail.setString(index1++,(Date)GC.toString());
stmntCustDetail.setString(index1++,testBed);
GC.add(GregorianCalendar.MINUTE,30);
rs = [statement name].executeQuery();
vc1 = [my owm func](rs);
vc.addAll(vc1);
}
but it shows much error
like in convertibles and cannot resolve symbol
can u help me
Date d = // ...
Calendar test = new GregorianCalendar();
test.setTime(d);
test.add(Calendar.MINUTE, 30);
If you want an eye on the compiler error messages, at least do two things: (1) Format your code using the code button, so it's readable (2) quote the precise error message.
