1. WIKI教程
2. Java.util包
3. int getFirstDayOfWeek()

int getFirstDayOfWeek()

描述 (Description)

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

声明 (Declaration)

以下是java.util.Calendar.getFirstDayOfWeek()方法的声明

public int getFirstDayOfWeek()

参数 (Parameters)

NA

返回值 (Return Value)

该方法返回一周的第一天。

异常 (Exception)

NA

例子 (Example)

以下示例显示了java.util.calendar.getFirstDayOfWeek（）方法的用法。

package com.iowiki;
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;
      }
   }
}

让我们编译并运行上面的程序，这将产生以下结果 -

First day is :2
Monday