一天字符串格式与天furure名称 [英] Name of day in string format with days to furure

问题描述

我需要每天每周的名字，但依赖Ø实际日期和日期的未来。比如我今天需要一天的名称，然后将其命名一天，明天，日期等2天等我使这个code，但没有工作好。那么，有没有更好的办法我怎么能在android系统得到一天的名字吗？

 公共字符串getDay3Name（）{
        台历挂历= Calendar.getInstance（）;
        calendar.setTime（新的Date（））;
        的String []天=新的String [] {SUNDAY，SUNDAY，SUNDAY，星期一，星期二，星期三，星期四，星期五，星期六};
        字符串天=天[calendar.get（Calendar.DAY_OF_WEEK）+1];
        回天;
    }
    公共字符串getDay4Name（）{
        台历挂历= Calendar.getInstance（）;
        calendar.setTime（新的Date（））;
        的String []天=新的String [] {SUNDAY，SUNDAY，SUNDAY，星期一，星期二，星期三，星期四，星期五，星期六};
        字符串天=天[calendar.get（Calendar.DAY_OF_WEEK）+2];
        回天;
    }
 

解决方案

 进口java.util.Calendar中;
进口java.util.Locale中;
公共类CalSample {    私有静态最终诠释TODAY = 0;
    私有静态最终诠释TOMORROW = 1;
    私有静态最终诠释DAY_AFTER_TOMORROW = 2;
    私有静态最终诠释THREE_DAYS_FROM_TODAY = 3;
    私有静态最终诠释FOUR_DAYS_FROM_TODAY = 4;
    私有静态最终诠释FIVE_DAYS_FROM_TODAY = 5;
    私有静态最终诠释SIX_DAYS_FROM_TODAY = 6;    公共静态无效的主要（字符串ARGS []）{
        CalSample calSample =新CalSample（）;
        calSample.getNameOfDayOfWeek（今天）;
        calSample.getNameOfDayOfWeek（明天）;
        calSample.getNameOfDayOfWeek（DAY_AFTER_TOMORROW）;
        calSample.getNameOfDayOfWeek（THREE_DAYS_FROM_TODAY）;
        calSample.getNameOfDayOfWeek（FOUR_DAYS_FROM_TODAY）;
        calSample.getNameOfDayOfWeek（SIX_DAYS_FROM_TODAY）;    }
    公共字符串getNameOfDayOfWeek（INT noOfDaysFromToday）{
        台历挂历= Calendar.getInstance（）;
        calendar.add（Calendar.DAY_OF_YEAR，noOfDaysFromToday）;
        字符串名称= calendar.getDisplayName（Calendar.DAY_OF_WEEK，Calendar.LONG，Locale.ENGLISH）;
        的System.out.println（日周： - +姓名）;
        返回名称;
    }
}
 

I need name of day in week but dependent o actual date and date to future. For example I need name of day today, then name of day tomorrow, name of date +2 days etc I make this code but not working good. So is there any better way how I can in android get name of day?

 public String getDay3Name() {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(new Date());
        String[] days = new String[] { "SUNDAY","SUNDAY","SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY" };
        String day = days[calendar.get(Calendar.DAY_OF_WEEK)+1];
        return day;
    }
    public String getDay4Name() {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(new Date());
        String[] days = new String[] { "SUNDAY","SUNDAY","SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY" };
        String day = days[calendar.get(Calendar.DAY_OF_WEEK)+2];
        return day;
    }

解决方案

import java.util.Calendar;
import java.util.Locale;


public class CalSample {

    private static final int TODAY = 0;
    private static final int TOMORROW = 1;
    private static final int DAY_AFTER_TOMORROW = 2;
    private static final int THREE_DAYS_FROM_TODAY = 3;
    private static final int FOUR_DAYS_FROM_TODAY = 4;
    private static final int FIVE_DAYS_FROM_TODAY = 5;
    private static final int SIX_DAYS_FROM_TODAY = 6;

    public static void main(String args[]){
        CalSample calSample = new CalSample();
        calSample.getNameOfDayOfWeek(TODAY);
        calSample.getNameOfDayOfWeek(TOMORROW);
        calSample.getNameOfDayOfWeek(DAY_AFTER_TOMORROW);
        calSample.getNameOfDayOfWeek(THREE_DAYS_FROM_TODAY);
        calSample.getNameOfDayOfWeek(FOUR_DAYS_FROM_TODAY);
        calSample.getNameOfDayOfWeek(SIX_DAYS_FROM_TODAY);

    }
    public String getNameOfDayOfWeek(int noOfDaysFromToday){
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.DAY_OF_YEAR, noOfDaysFromToday);
        String name = calendar.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, Locale.ENGLISH);
        System.out.println("Day Of Week:- " + name);
        return name;
    }
}

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