Java.util.Calendar.getFirstDayOfWeek() Java.util.Calendar.getDisplayNames() Java.util.Calendar.getGreatestMinimum() 描述 该java.util.Calendar.getFirstDayOfWeek()方法返回的一周的第一天。 声明 以下是java.util.Calendar.getFirstDayOfWeek()方法的声明 public int getFirstDayOfWeek() 参数 NA 返回值 该方法返回一周的第一天。 异常 NA 实例 以下示例显示了java.util.calendar.getFirstDayOfWeek()方法的用法。 package com.tutorialspoint; 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 Java.util.Calendar.getDisplayNames() Java.util.Calendar.getGreatestMinimum()