Java.util.Calendar.setFirstDayOfWeek() Java.util.Calendar.set() Java.util.Calendar.setLenient() 描述 该java.util.Calendar.setFirstDayOfWeek(INT)方法设置一周的第一天。 声明 以下是java.util.Calendar.setFirstDayOfWeek()方法的声明 public void setFirstDayOfWeek(int value) 参数 value - 给定的第一天。 返回值 此方法不返回值。 异常 NA 实例 以下示例显示了java.util.calendar.setFirstDayOfWeek()方法的用法。 package com.tutorialspoint; import java.util.*; public class CalendarDemo { public static void main(String[] args) { // create a calendar Calendar cal = Calendar.getInstance(); // print current first day of the week int day = cal.getFirstDayOfWeek(); System.out.println("Current first day of the week:" + day); // set first day of the week as something else cal.setFirstDayOfWeek(Calendar.WEDNESDAY); // print altered first day of the week day = cal.getFirstDayOfWeek();; System.out.println("Altered first day of the week:" + day); } } 让我们编译并运行上面的程序,这将产生以下结果 Current first day of the week:2 Altered first day of the week:4 Java.util.Calendar.set() Java.util.Calendar.setLenient()