How to set time to a date object in java

Question

I created a Date object in Java. When I do so, it shows something like: date=Tue Aug 09 00:00:00 IST 2011. As a result, it appears that my Excel fi

Answer 1

If you don't have access to java 8 and the API java.time, here is my simple function to copy the time of one date to another date using the old java.util.Calendar (inspire by Jigar Joshi) :

/**
 * Copy only the time of one date to the date of another date.
 */
public static Date copyTimeToDate(Date date, Date time) {
    Calendar t = Calendar.getInstance();
    t.setTime(time);

    Calendar c = Calendar.getInstance();
    c.setTime(date);
    c.set(Calendar.HOUR_OF_DAY, t.get(Calendar.HOUR_OF_DAY));
    c.set(Calendar.MINUTE, t.get(Calendar.MINUTE));
    c.set(Calendar.SECOND, t.get(Calendar.SECOND));
    c.set(Calendar.MILLISECOND, t.get(Calendar.MILLISECOND));
    return c.getTime();
}