java日历类Calendar简单使用

import java.util.Calendar;
import java.util.TimeZone;

public class Test1 {

	public static void main(String[] args) {
		
		//指定东八区，即北京时间
		Calendar cc = Calendar.getInstance(TimeZone.getTimeZone("GMT+8"));
		int year = cc.get(Calendar.YEAR);
		
		//月份是从0开始计数的，所以此处进行加1
		int month = cc.get(Calendar.MONTH)+1;
		int day = cc.get(Calendar.DAY_OF_MONTH);
		
		int hour_8 = cc.get(Calendar.HOUR);//8小时制
		int hour_24 = cc.get(Calendar.HOUR_OF_DAY);//24小时制
		
		int minute = cc.get(Calendar.MINUTE);
		int second = cc.get(Calendar.SECOND);
		
		//需减一（西方一周的第一天是周日）
		int weekday = cc.get(Calendar.DAY_OF_WEEK)-1;
		
		//8小时制输出
		System.out.println(year+"-"+month+"-"+day+" "+hour_8+":"+minute+":"+second+" 星期"+weekday);
		
		//24小时制输出
		System.out.println(year+"-"+month+"-"+day+" "+hour_24+":"+minute+":"+second+" 星期"+weekday);
	}
}

输出结果：

2012-3-16 3:24:24 星期5
2012-3-16 15:24:24 星期5

http://huangqiqing123.iteye.com/blog/1417714