判断当前时间为本月的第几周,本周的第几天

MainActivity如下:

package cc.test;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import android.app.Activity;
import android.os.Bundle;
/**
 * Demo描述:
 * 判断当前时间为本月的第几周
 * 判断当前时间为本周的第几天
 * 判断当前的季节
 * 
 * 注意问题:
 * 在Calendar中每周是从我们中国人的周日(星期七)开始计算的.
 * 所以Calendar的周一实际为我们中国人的上周的星期七.
 * 在此需要特殊处理一下.
 *
 */
public class TestWeekActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        getCurrentTime();
        getWeekAndDay();
        
    }
    
    
    private void getWeekAndDay(){
    	 Calendar calendar= Calendar.getInstance();
    	//获取当前时间为本月的第几周
    	 int week = calendar.get(Calendar.WEEK_OF_MONTH);
    	 //获取当前时间为本周的第几天
    	 int day = calendar.get(Calendar.DAY_OF_WEEK);
    	 if (day==1) {
			day=7;
			week=week-1;
		} else {
            day=day-1;
		}
    	 System.out.println("今天是本月的第" + week + "周"+",星期"+(day));

    }
   
   //获取当前时间(精确到天)且判断季节
	private void getCurrentTime() {
		SimpleDateFormat sDateFormat = new SimpleDateFormat("yyyy-MM-dd");
		String date = sDateFormat.format(new java.util.Date());
		System.out.println("date=" + date);
		String dates[] = date.split("-");
		System.out.println("dates[0]=" + dates[0]);
		System.out.println("dates[1]=" + dates[1]);
		System.out.println("dates[2]=" + dates[2]);

		System.out.println("---------------------");

		System.out.println("dates[0]=" + Integer.valueOf(dates[0]));
		System.out.println("dates[1]=" + Integer.valueOf(dates[1]));
		System.out.println("dates[2]=" + Integer.valueOf(dates[2]));

		int month = Integer.valueOf(dates[1]);
		String season = null;
		if (month == 12 || month == 1 || month == 2) {
            season="冬天";
		} else if(month == 3 || month == 4 || month == 5){
			season="春天";
		} else if(month == 6 || month == 7 || month == 8) {
			season="夏天";
		}else {
			season="秋天";
		}
		
		System.out.println("季节:"+season);
	}
    
}

 

main.xml如下:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

</LinearLayout>