java学习笔记

import java.time.Clock;
import java.util.Calendar;
import java.util.GregorianCalendar;

public class Welcome {
    public static void main(String[] args) {
        /**
         * old Date api
         */
        GregorianCalendar now = new GregorianCalendar();
        int month = now.get(Calendar.MONTH);
        int weekday = now.get(Calendar.DAY_OF_WEEK);
        /**
         * 1.8 Date API
         */
        Clock clock = Clock.systemDefaultZone();
        long mills = clock.millis();
        System.out.println(mills);
    }
}