java.util.Calendar getFirstDayOfWeek()方法

java.util.Calendar.getFirstDayOfWeek() 此方法方法返回一周的第一天。

1 语法

public int getFirstDayOfWeek()

2 参数

无

3 返回值

该方法返回一周的第一天。

4 示例1 

package com.yiidian;

/**
 * 一点教程网： http://www.yiidian.com
 */
/**
 * java.util.Calendar getFirstDayOfWeek()方法的例子
 */
import java.util.*;

public class CalendarDemo {

   public static void main(String[] args) {

      // create a new calendar
      Calendar cal = Calendar.getInstance();

      // print the first day of the week
      System.out.println("First day is :" + cal.getFirstDayOfWeek());
      int day = cal.getFirstDayOfWeek();
      switch (day) {
         case (1):
            System.out.println("Sunday");
            break;
         case (2):
            System.out.println("Monday");
            break;
         case 3:
            System.out.println("Tuesday");
            break;
         case 4:
            System.out.println("Wednesday");
            break;
         case 5:
            System.out.println("Thrusday");
            break;
         case 6:
            System.out.println("Friday");
            break;
         case 7:
            System.out.println("Saturday");
            break;
      }
   }
}

输出结果为：

First day is :2
Monday