Date类毫秒日期之间相互转换

package cn.itcast.day12.demo01;import java.util.Date;/*** &＃64;author admin* &＃64;version 1.0.0* &＃64;ClassName Demo02.java* &＃64;Description TODO* &＃64;createTime 2021年09月21日 14:02:00*/public class Demo02 {public static void main(String[] args) {test1();test02();test3();}/*** long getTime() 把日期转换为毫秒值 (相当于)System.currentTimeMillis()方法*/private static void test3() {Date date &＃61; new Date();long time &＃61; date.getTime();System.out.println("test2 &＃43; time &＃61; " &＃43; time);}private static void test02() { //test2 &＃43; date &＃61; Thu Jan 01 08:00:00 CST 1970/*** Date类带参数的构造方法* Date(long date) :传递毫秒值 把毫秒值转换为Date日期*/Date date &＃61; new Date(1632204461291L);System.out.println("test2 &＃43; date &＃61; " &＃43; date);}private static void test1() {Date date &＃61; new Date();System.out.println("test1 &＃43; date &＃61; " &＃43; date); // date &＃61; Tue Sep 21 14:02:45 CST 2021}
}