输出日期的下一天:
package Test;
import java.util.Scanner;
public class test3 {
public static void NextDate()
{
int year,mouth,day;
int year1,mouth1,day1;
int run=0;
@SuppressWarnings("resource")
Scanner input = new Scanner(System.in);
while(true) {
while(true)
{
System.out.println("请输入年份");
year=input.nextInt();
if(year<1000||year>9999)
{
System.out.println("输入数据非法");
continue;
}
if((year%4==0&&year%400!=0)||year%400==0)
run=1;
else
run=0;
break;
}
while(true)
{
System.out.println("请输入月份");
mouth=input.nextInt();
if(mouth>12||mouth<1)
{
System.out.println("输入数据非法");
continue;
}
break;
}
while(true)
{
System.out.println("请输入日期");
day=input.nextInt();
if(day>31||day<1)
{
System.out.println("输入数据非法");
continue ;
}
if(day==31&&(mouth==2||mouth==4||mouth==6||mouth==9||mouth==11))
{
System.out.println("输入日期不存在");
continue ;
}
if(day==30&&mouth==2)
{
System.out.println("输入日期不存在");
continue;
}
if(day==29&&run==0&&mouth==2)
{
System.out.println("输入日期不存在");
continue ;
}
break;
}
if (day==31||(day==30&&(mouth==4||mouth==6||mouth==9||mouth==11)))
{
if(mouth==12)
{
mouth1=1;
year1=year+1;
day1=1;
}
else
{
mouth1=mouth+1;
year1=year;
day1=1;
}
}
else if((day==29&&mouth==2)||(day==28&&mouth==2&&run==0))
{
mouth1=3;
year1=year;
day1=1;
}
else
{
mouth1=mouth;
day1=day+1;
year1=year;
}
System.out.println("您输入的是"+year+"年"+mouth+"月"+day+"日");
System.out.println("它的下一天是"+year1+"年"+mouth1+"月"+day1+"日\n");
}
}
public static void main(String[] args) {
NextDate();
}
}
输出结果:
可以试试看。