編寫一個程序,要求用戶輸入一年。然後該程序應該指出基於中國十二生肖的年份類型。while循環和開關不斷重複
你將需要:
掃描器對象輸入 輸入驗證:確保今年進入是肯定的! (使用while循環對於這部分) 變量來存儲年進入 switch語句來選擇合適的星座
輸出的樣本如下所示: 輸入年份:-89 進入請anni domini(AD)幾年! 重新輸入年份:1989 1989年是蛇的年份
當我運行代碼並鍵入一年時,代碼會繼續運行並重復其自身。我如何製作它只是打印一次?
import java.util.Scanner;
public class ChineseZodiac {
public static void main(String[] args) {
int year;
Scanner in = new Scanner(System.in);
System.out.print("Enter a year: ");
year = in.nextInt();
while (year != 0)
{
switch (year % 12)
{
case 0:
{
System.out.println("The year " + year + " is the year of the Monkey");
break;
}
case 1:
{
System.out.println("The year " + year + " is the year of the Rooster");
break;
}
case 2:
{
System.out.println("The year " + year + " is the year of the Dog");
break;
}
case 3:
{
System.out.println("The year " + year + " is the year of the Pig");
break;
}
case 4:
{
System.out.println("The year " + year + " is the year of the Rat");
break;
}
case 5:
{
System.out.println("The year " + year + " is the year of the Ox");
break;
}
case 6:
{
System.out.println("The year " + year + " is the year of the Tiger");
break;
}
case 7:
{
System.out.println("The year " + year + " is the year of the Rabbit");
break;
}
case 8:
{
System.out.println("The year " + year + " is the year of the Dragon");
break;
}
case 9:
{
System.out.println("The year " + year + " is the year of the Snake");
break;
}
case 10:
{
System.out.println("The year " + year + " is the year of the Horse");
break;
}
case 11:
{
System.out.println("The year " + year + " is the year of the Sheep");
break;
}
}
}
}
}
使用下面的代碼,然後用戶按0它將退出否則請求並給予掃描儀=新掃描儀(System.in); System.out.print(「Enter a year:」); year = in.nextInt(); –
當然,while循環不斷重複。這就是它的重點。除非將年份變量更改爲0或突破它,否則它將保持循環。 – Ivar
'「我如何製作它只是打印一次?」 - 通過刪除循環。循環的*目的是重複一些事情。 – David