java api--日期api应用代码片

package test;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class DateProcess {
	public static void main(String[] args) {
		//定义一个日期对象，并对其进行指定格式化输出
		Date nowTime = new Date();
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
		String date = sdf.format(nowTime);
		System.out.println(date);

		//定义一个日历对象并对其进行格式化输出
		Calendar c = Calendar.getInstance();
		//月份的索引以0开始
		c.set(2009, 2, 5);
		nowTime = c.getTime();
		date = sdf.format(nowTime);
		System.out.println(date);

		//使日历翻一天看结果
		c.add(Calendar.DATE, 1);
		nowTime = c.getTime();
		date = sdf.format(nowTime);
		System.out.println(date);

		//在月末的时候加一天看结果
		c.set(2009, 2, 31);
		c.add(Calendar.DATE, 1);
		nowTime = c.getTime();
		date = sdf.format(nowTime);
		System.out.println(date);
	}
}