Java获取系统时间_JAVA_编程开发_程序员俱乐部

1、毫秒显示

import java.util.Date;

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long date = new Date().getTime();

System.out.println("从很早的时间到现在总的毫秒数："+ date +"毫秒");

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2、时间格式显示

import java.util.Calendar;

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public class SysDate {

?public static void main(String[] args) {

? Calendar c = Calendar.getInstance();

? System.out.println("年：" + c.get(Calendar.YEAR));

? System.out.println("月：" + (c.get(Calendar.MONTH) + 1));

? System.out.println("日：" + c.get(Calendar.DAY_OF_MONTH));

? System.out.println("24时制小时：" + c.get(Calendar.HOUR_OF_DAY));

? System.out.println("12时制：" + c.get(Calendar.HOUR));

? System.out.println("分：" + c.get(Calendar.MINUTE));

? System.out.println("秒：" + c.get(Calendar.SECOND));

? System.out.println("今天是一年中的第：" + c.get(Calendar.DAY_OF_YEAR) + "天");

?}

}?