java swith小程序。解决方案
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刚写的JAVA小程序出错了
哪为高手给看看。。万分感谢
import java.io.*;
public class MyDate
{
public static void main(String args[])
{
int day=1;
int month=1;
int year=2008;
InputStreamReader reader = new InputStreamReader(System.in);
BufferedReader input=new BufferedReader(reader);
try
{
System.out.println("请输入年：(year>=1700 && year<=2010)");
year=Integer.parseInt(input.readLine());
System.out.println("你输入月：month>=1 && month<=12");
month=Integer.parseInt(input.readLine());
System.out.println("请输入日：day>=1 && day<=31");
day=Integer.parseInt(input.readLine());
if(year>=1700 && year<=2010)
{
if((year%4==0&&year%100!=0)||(year%400==0))
{
System.out.println("闰年");
swith(month)
{
case 1,3,5,7,8,10,12:
if(day>=1 && day<=31)
System.out.println("您输入的日期："+year+"-"+month+"-"+day);
break;
case 2:
if(day>=1 && day<=29)
System.out.println("您输入的日期："+year+"-"+month+"-"+day);
break;
case 4,6,9,11:
if(day>=1 && day<=30)
System.out.println("您输入的日期："+year+"-"+month+"-"+day);
break;
default:
System.out.println("信息错误");
break;
}
}
else
{
System.out.println("非闰年");
swith(month)
{
case 1,3,5,7,8,10,12:
if(day>=1 && day<=31)
System.out.println("您输入的日期："+year+"-"+month+"-"+day);
break;
case 2:
if(day>=1 && day<=28)
System.out.println("您输入的日期："+year+"-"+month+"-"+day);
break;
case 4,6,9,11:
if(day>=1 && day<=30)
System.out.println("您输入的日期："+year+"-"+month+"-"+day);
break;
default:
System.out.println("信息错误");
break;
}
}
}
else {System.out.println("信息错误");}
}
catch(IOException e)
{
System.err.println("Error is "+e.getMessage());
}
}
}
------解决方案--------------------
switch全都写错了，case的用法完全乱搞，改了一下
- Java code
import java.io.*;
public class MyDate {
public static void main(String args[]) {
int day = 1;
int month = 1;
int year = 2008;
InputStreamReader reader = new InputStreamReader(System.in);
BufferedReader input = new BufferedReader(reader);
try {
System.out.println("请输入年：(year>=1700 && year <=2010)");
year = Integer.parseInt(input.readLine());
System.out.println("你输入月：month>=1 && month <=12");
month = Integer.parseInt(input.readLine());
System.out.println("请输入日：day>=1 && day <=31");
day = Integer.parseInt(input.readLine());
if (year >= 1700 && year <= 2010) {
if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
System.out.println("闰年");
switch (month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
if (day >= 1 && day <= 31)
System.out.println("您输入的日期：" + year + "-" + month
+ "-" + day);
break;
case 2:
if (day >= 1 && day <= 29)
System.out.println("您输入的日期：" + year + "-" + month
+ "-" + day);
break;
case 4:
case 6:
case 9:
case 11:
if (day >= 1 && day <= 30)
System.out.println("您输入的日期：" + year + "-" + month
+ "-" + day);
break;
default:
System.out.println("信息错误");
break;
}
} else {
System.out.println("非闰年");
switch (month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
if (day >= 1 && day <= 31)
System.out.println("您输入的日期：" + year + "-" + month
+ "-" + day);
break;
case 2:
if (day >= 1 && day <= 28)
System.out.println("您输入的日期：" + year + "-" + month
+ "-" + day);
break;
case 4:
case 6:
case 9:
case 11:
if (day >= 1 && day <= 30)
System.out.println("您输入的日期：" + year + "-" + month
+ "-" + day);
break;
default:
System.out.println("信息错误");
break;
}
}
} else {
System.out.println("信息错误");
}
} catch (IOException e) {
System.err.println("Error is " + e.getMessage());
}
}
}
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