当被要求回答以下问题时：假设公司的股票点在纽约股票的特定模式中波动 交换。它在给定时期的前半部分每天增加50点并减少25点 下半场得分。如果给定时期内的天数是奇数，则前半部分被认为是a 一天多于下半场。 编写一个Java程序，首先要求用户输入给定时间段内的天数 第一天分享积分。输入的天数不得少于10天 如果不是这样，则必须提示用户再次输入输入，并显示以下消息： “天数不符合要求的标准，请再次输入”。该程序应该输出 显示当天的日期和分享点的表格。
我写了代码：
import java.util.Scanner;
public class QuestionOne
{
public static void main(String[]args)
{
int numberofDays;
int sharePoints;
Scanner keyboard = new Scanner (System.in);
System.out.print("Number of days in the period: ");
numberofDays = keyboard.nextInt();
System.out.print("Share points on the first day: ");
sharePoints = keyboard.nextInt();
if(numberofDays < 10 || numberofDays > 20)
{
System.out.println("The number of days doesn’t meet the required criteria, enter it again");
// needs to loop to beginning to make program carry out proper function//
}
else
{
System.out.println("Day " + " Share Points");
switch(numberofDays)
{
case 1:
System.out.println(1 + " " + sharePoints + 50);
break;
case 2:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 25);
break;
case 3:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 75);
break;
case 4:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 75);
System.out.println(4 + " " + sharePoints + 50);
break;
case 5:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 75);
System.out.println(5 + " " + sharePoints + 50);
break;
case 6:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 125);
System.out.println(5 + " " + sharePoints + 100);
System.out.println(6 + " " + sharePoints + 75);
break;
case 7:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 175);
System.out.println(6 + " " + sharePoints + 150);
System.out.println(7 + " " + sharePoints + 125);
break;
case 8:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 175);
System.out.println(6 + " " + sharePoints + 150);
System.out.println(7 + " " + sharePoints + 125);
System.out.println(8 + " " + sharePoints + 100);
break;
case 9:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 225);
System.out.println(7 + " " + sharePoints + 200);
System.out.println(8 + " " + sharePoints + 175);
System.out.println(9 + " " + sharePoints + 150);
break;
case 10:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 225);
System.out.println(7 + " " + sharePoints + 200);
System.out.println(8 + " " + sharePoints + 175);
System.out.println(9 + " " + sharePoints + 150);
System.out.println(10 + " " + sharePoints + 125);
break;
case 11:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 275);
System.out.println(8 + " " + sharePoints + 250);
System.out.println(9 + " " + sharePoints + 225);
System.out.println(10 + " " + sharePoints + 200);
System.out.println(11 + " " + sharePoints + 175);
break;
case 12:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 275);
System.out.println(8 + " " + sharePoints + 250);
System.out.println(9 + " " + sharePoints + 225);
System.out.println(10 + " " + sharePoints + 200);
System.out.println(11 + " " + sharePoints + 175);
System.out.println(12 + " " + sharePoints + 150);
break;
case 13:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 350);
System.out.println(8 + " " + sharePoints + 325);
System.out.println(9 + " " + sharePoints + 300);
System.out.println(10 + " " + sharePoints + 275);
System.out.println(11 + " " + sharePoints + 250);
System.out.println(12 + " " + sharePoints + 225);
System.out.println(13 + " " + sharePoints + 200);
break;
case 14:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 350);
System.out.println(8 + " " + sharePoints + 325);
System.out.println(9 + " " + sharePoints + 300);
System.out.println(10 + " " + sharePoints + 275);
System.out.println(11 + " " + sharePoints + 250);
System.out.println(12 + " " + sharePoints + 225);
System.out.println(13 + " " + sharePoints + 200);
System.out.println(14 + " " + sharePoints + 175);
break;
case 15:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 350);
System.out.println(8 + " " + sharePoints + 400);
System.out.println(9 + " " + sharePoints + 375);
System.out.println(10 + " " + sharePoints + 350);
System.out.println(11 + " " + sharePoints + 325);
System.out.println(12 + " " + sharePoints + 300);
System.out.println(13 + " " + sharePoints + 275);
System.out.println(14 + " " + sharePoints + 250);
System.out.println(15 + " " + sharePoints + 225);
break;
case 16:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 350);
System.out.println(8 + " " + sharePoints + 400);
System.out.println(9 + " " + sharePoints + 375);
System.out.println(10 + " " + sharePoints + 350);
System.out.println(11 + " " + sharePoints + 325);
System.out.println(12 + " " + sharePoints + 300);
System.out.println(13 + " " + sharePoints + 275);
System.out.println(14 + " " + sharePoints + 250);
System.out.println(15 + " " + sharePoints + 225);
System.out.println(16 + " " + sharePoints + 200);
break;
case 17:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 350);
System.out.println(8 + " " + sharePoints + 400);
System.out.println(9 + " " + sharePoints + 450);
System.out.println(10 + " " + sharePoints + 425);
System.out.println(11 + " " + sharePoints + 400);
System.out.println(12 + " " + sharePoints + 375);
System.out.println(13 + " " + sharePoints + 350);
System.out.println(14 + " " + sharePoints + 325);
System.out.println(15 + " " + sharePoints + 300);
System.out.println(16 + " " + sharePoints + 275);
System.out.println(17 + " " + sharePoints + 250);
break;
case 18:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 350);
System.out.println(8 + " " + sharePoints + 400);
System.out.println(9 + " " + sharePoints + 450);
System.out.println(10 + " " + sharePoints + 425);
System.out.println(11 + " " + sharePoints + 400);
System.out.println(12 + " " + sharePoints + 375);
System.out.println(13 + " " + sharePoints + 350);
System.out.println(14 + " " + sharePoints + 325);
System.out.println(15 + " " + sharePoints + 300);
System.out.println(16 + " " + sharePoints + 275);
System.out.println(17 + " " + sharePoints + 250);
System.out.println(18 + " " + sharePoints + 225);
break;
case 19:
System.out.println(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 350);
System.out.println(8 + " " + sharePoints + 400);
System.out.println(9 + " " + sharePoints + 450);
System.out.println(10 + " " + sharePoints + 500);
System.out.println(11 + " " + sharePoints + 475);
System.out.println(12 + " " + sharePoints + 450);
System.out.println(13 + " " + sharePoints + 425);
System.out.println(14 + " " + sharePoints + 400);
System.out.println(15 + " " + sharePoints + 375);
System.out.println(16 + " " + sharePoints + 350);
System.out.println(17 + " " + sharePoints + 325);
System.out.println(18 + " " + sharePoints + 300);
System.out.println(19 + " " + sharePoints + 275);
break;
case 20:
System.out.print(1 + " " + sharePoints + 50);
System.out.println(2 + " " + sharePoints + 100);
System.out.println(3 + " " + sharePoints + 150);
System.out.println(4 + " " + sharePoints + 200);
System.out.println(5 + " " + sharePoints + 250);
System.out.println(6 + " " + sharePoints + 300);
System.out.println(7 + " " + sharePoints + 375);
System.out.println(8 + " " + sharePoints + 400);
System.out.println(9 + " " + sharePoints + 450);
System.out.println(10 + " " + sharePoints + 500);
System.out.println(11 + " " + sharePoints + 475);
System.out.println(12 + " " + sharePoints + 450);
System.out.println(13 + " " + sharePoints + 425);
System.out.println(14 + " " + sharePoints + 400);
System.out.println(15 + " " + sharePoints + 375);
System.out.println(16 + " " + sharePoints + 350);
System.out.println(17 + " " + sharePoints + 325);
System.out.println(18 + " " + sharePoints + 300);
System.out.println(19 + " " + sharePoints + 275);
System.out.println(20 + " " + sharePoints + 250);
break;
}
}
}
}
然而，我遇到了一个大问题和两个小问题;第一个较小的问题是我的答案是输入数字加上我想要添加的数字（所以如果你输入100，它增加25，你应该得到125-但是我得到10025）。第二个小问题是我想循环我在代码中注释它的代码，以便它返回到开头 - 但我不知道该怎么做。最后，我最大的问题是我想使用循环语句简化这段代码，但还是无法成功完成。真的是最后一部分是一个延伸，如果我可以得到关于连接问题和循环问题的帮助那么我应该是O.K.并将永远感激。只是我的代码将更难以进行故障排除和阅读。
答案 0 :(得分：2)
如果您尝试添加带有数字的字符串，Java将首先将数字更改为字符串，然后将它们全部连接起来。因此，您获得"1 10025"行System.out.print(1 + " " + sharePoints + 50);。
因此，您需要将其更改为
System.out.print(1 + " " + (sharePoints + 50));
然后它将首先计算数学，然后将其更改为String for concat。
要在true时循环播放某些内容，例如用户输入，您可以使用以下代码段。
Scanner keyboard = new Scanner (System.in);
System.out.print("Number of days in the period: ");
numberofDays = keyboard.nextInt();
while (numberofDays < 10 || numberofDays > 20)
{
System.out.println("The number of days doesn’t meet the required criteria, enter it again");
System.out.print("Number of days in the period: ");
numberofDays = keyboard.nextInt();
}
当小于10天且超过20天时，它会要求用户再次输入。
要使用循环计算不同日期的sharePoints，您可以使用循环动态添加它。在前半天的每次迭代中将50分钟添加到sharePoints中，再过半分钟减去25分钟分享，就像这样。
int increaseDays = (int) (numberofDays + 0.5) / 2;
int i;
for (i = 1; i <= increaseDays; i++)
{
sharePoints += 50;
System.out.println(i + " " + sharePoints);
}
for (; i <= numberofDays; i++)
{
sharePoints -= 25;
System.out.println(i + " " + sharePoints);
}
答案 1 :(得分：1)
与Alex略有不同的代码。 用户输入循环和算术评估问题由他解决 这是计算共享点的循环。
for(int i = 1; i <= numberofDays; i++)
{
if(numberofDays % 2 == 0)
if(i <= numberofDays/2) {
sharePoints = sharePoints + 50;
System.out.println("Day : " + i + " : Share Points : " + sharePoints);
}
else {
sharePoints = sharePoints - 25;
System.out.println("Day : " + i + " : Share Points : " + sharePoints);
}
else {
if(i <= numberofDays/2 + 1) {
sharePoints = sharePoints + 50;
System.out.println("Day : " + i + " : Share Points : " + sharePoints);
}
else {
sharePoints = sharePoints - 25;
System.out.println("Day : " + i + " : Share Points : " + sharePoints);
}
}
}
答案 2 :(得分：0)
使用java 8流和lambda的理想方案。