本文介绍了Java Calendar.DAY_OF_WEEK给出错误的日期的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
以下代码有什么问题?一年中的任何一天都会给出错误的日期.
What is wrong with the below code? It gives wrong day for any date of the year.
import java.util.Scanner;
import java.util.Calendar;
public class Solution {
public static String getDay(String d, String m, String y) {
String[] days = {"SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY"};
Calendar c = Calendar.getInstance();
c.set(Integer.parseInt(y), Integer.parseInt(m), Integer.parseInt(d));
return days[c.get(Calendar.DAY_OF_WEEK) - 1];
}
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String m = in.next();
String d = in.next();
String y = in.next();
System.out.println(getDay(d, m, y));
}
}
推荐答案
请参阅 Calendar
类的文档: https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html#set-int-int-int-
月份的值是从0开始的索引,因此,如果您提供 3
作为月份的值,它将被解释为四月".
The value for month is 0-indexed, so if you provide 3
as the month value, it is interpreted as "April".
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