Calendar的用法

package test;


import java.math.BigDecimal;
import java.nio.channels.NonReadableChannelException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;

public class Main {

	private static final String space_operator = " ";
	private static final double pi = Math.PI;
	public static void main(String[] args) throws Exception {

		/**
		 * 直接用Calendar的静态方法获取它的年月日和星期
		 * month是加上1，因为直接获取是0-11
		 * week星期日是1，没有0；
		 */
		
		Calendar c = Calendar.getInstance();
		
		int year = c.get(Calendar.YEAR);
		int month = c.get(Calendar.MONTH) + 1;
		int day = c.get(Calendar.DAY_OF_MONTH);
		int week = c.get(Calendar.DAY_OF_WEEK);
	
		System.out.println(year + "年" + month + "月" + day +  "日" + getweek(week));
		
		
		
		
	}
	public static String getweek(int week) {
		String [] weeks = {"","星期日","星期一","星期二","星期三","星期四","星期五","星期六"};
				
		return weeks[week];
	}
	
}