MyDay

For my day

 

import java.util.Calendar;

public class MyDay {
    public static void main(String args[]) {
        Calendar cal = Calendar.getInstance();
        long now = cal.getTimeInMillis();
        
        cal.set(2007, 10, 1);
        long one = cal.getTimeInMillis();
        int dayNum = (int)((now - one) / (1000*60*60*24.0));
        
        // binary format
        String str = Integer.toBinaryString(dayNum);
        
        // prefix with zeros
        while (str.length()<8) {
            str = "0" + str;
        }
        System.out.println(dayNum);
        System.out.println(str);
    }
}