JAVA中如何得到今天是星期几？

Question

用程序如何实现今天是星期几啊，谢谢了

Answer 1

import java.util.Date;public class TestDate {    public static void main(String[] args) {
        System.out.println("星期" + new Date().getDay());
    }
}

Answer 2

final String dayNames[] = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五","星期六" };
Calendar calendar = Calendar.getInstance();
Date date = new Date();
calendar.setTime(date);
int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK)-1;
if(dayOfWeek<0)dayOfWeek=0;
System.out.println(dayNames[dayOfWeek]);

Answer 3

public static int getDate(Date date){
    
     Calendar cal = Calendar.getInstance();
        cal.setTime(date); 
        int week = cal.get(Calendar.DAY_OF_WEEK)-1;
        if(week == 0)
         return week=7;
        else
         return week;
    }