Convert yyyy-MM-dd HH:mm:ss.SSS format date to long value

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DateConversion {
    static long getDateAsLong(String str) throws ParseException{
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
        Date date = format.parse(str);
        return date.getTime();
    }
    
    public static void main(String args[]) throws ParseException{
        String str = "2013-04-04 04:28:18.000";
        long time = getDateAsLong(str);
        System.out.println(time);
    }
}

Output

1365029898000

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