How to implement isWeekday() and isWeekend()?

I would like to a开发者_如何学Pythonsk. I've a date format like 2011-06-05 00:00:00 I want to construct a method in java which will validate this date as week day or weekend.

the methods are something like this.

public boolean isWeekday(Date dt){

    //process here
    return true;
}

and

public boolean isWeekend(Date dt){

    //process here
    return true;    
}

What should i code to validate the date given?

Thanks..

Calendar cal = new GregorianCalendar();
cal.setTime(dt);
int day = cal.get(Calendar.DAY_OF_WEEK);
return day == Calendar.SUNDAY || day == Calendar.SATURDAY;

Calendar cal = new GregorianCalendar(dt.getYear(), dt.getMonth(), dt.getDay());
int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);    // 6=Friday

For weekdays, dayOfWeek equals 2 (Monday), 3 (Tuesday), 4 (Wednesday), 5 (Thursday), 6 (Friday)

For weekends, dayOfWeek equal 7 (Saturday), 1 (Sunday)