用JAVA 题目：输入某年某月某日，判断这一天是这一年的第几天？ import java.text.SimpleDateFormat；import java.util.Calendar；import java.util.Scanner；public class GetDate {public static void main(String[]args){Scanner scanner=new Scanner(System.in)；System.out.println(\"请输入年：\")；int year=scanner.nextInt()；System.out.println(\"请输入月：\")；int month=scanner.nextInt()；System.out.println(\"请输入日：\")；int day=scanner.nextInt()；Calendar calendar1=Calendar.getInstance()；calendar1.set(year，0，1)；long time1=calendar1.getTimeInMillis()；Calendar calendar2=Calendar.getInstance()；calendar2.set(year，month-1，day)；long time2=calendar2.getTimeInMillis()；long result=(time2-time1)/1000/60/60/24；SimpleDateFormat format=new SimpleDateFormat(\"yyyy/MM/dd\")；System.out.println(format.format(calendar2.getTime())+\"距离format.format(calendar1.getTime())+\"有\"+result+\"天\")；}}
java ：输入某年某月某日，判断这一天是这一年的第几天？（考虑闰年的情况） 一个 switch case 不就解决了？上午比较闲=public static void main(String arge[]){ int year=2008；int month=12；int day=11；int count=0；switch(month){ case 12：count+。
Java程序：输入某年某月某日，判断该天星期几，是这一年的第几天. import java.io.BufferedReader；import java.io.InputStreamReader；import java.util.Calendar；import java.util.Date；public class DateTest {public static void main(String[]args){InputStreamReader isr=new InputStreamReader(System.in)；BufferedReader br=new BufferedReader(isr)；String dateStr；try {System.out.println(\"请按照2012-1-1格式输入日期：\")；dateStr=br.readLine()；Calendar calendar=Calendar.getInstance()；java.text.SimpleDateFormat formt=new java.text.SimpleDateFormatyyyy-MM-dd\")；Date date=formt.parse(dateStr)；calendar.setTime(date)；System.out.println(\"今天星期\"+calendar.get(Calendar.DAY_OF_WEEK+1))；System.out.println(\"今天是\"+calendar.get(Calendar.YEAR)+\"年的第calendar.get(Calendar.DAY_OF_YEAR)+\"天\")；} catch(Exception e){e.printStackTrace()；}}}
用java编写 输入某年某月某日，判断这一天是星期几 import java.io.BufferedReader；import java.io.IOException；import java.io.InputStreamReader；import java.util.Calendar；public class CCC {public static void main(String[]args)throws IOException {System.out.println(\"请输入年月日，格式：yyyy-MM-dd\")；BufferedReader br=new BufferedReader(new InputStreamReader(System.in))；String s=br.readLine()；Calendar c=Calendar.getInstance(java.util.Locale.CHINA)；String[]sp=s.split(\"-\")；c.set(Calendar.YEAR，Integer.parseInt(sp[0]))；c.set(Calendar.MONTH，Integer.parseInt(sp[1])-1)；c.set(Calendar.DATE，Integer.parseInt(sp[2]))；int wd=c.get(Calendar.DAY_OF_WEEK)；String x=\"；switch(wd){case 1：x=\"星期日；break；case 2：x=\"星期一；break；case 3：x=\"星期二；break；case 4：x=\"星期三；break；case 5：x=\"星期四；break；case 6：x=\"星期五；break；case 7：x=\"星期六；break；}System.out.println(s+\"是：\"+x)；}}
