year.java

JAVA源码

import java.io.*;
public class Year
{
  public static int year,month,day;
	public static void main(String[] args)
	{
    String years[]=new String[3];
    String num="";
	System.out.println("请输入年月（如：2008-1-3）");
		try
		{
			BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
            num = reader.readLine();
        }
		catch(Exception e){}
		years=num.split("-");
		try
		{
			year=Integer.parseInt(years[0]);
			month=Integer.parseInt(years[1]);
			day=Integer.parseInt(years[2]);
		}
		catch (Exception e)
		{
			System.out.println("输入非法，请重新输入。");
		}
		if(year>=1812&&year<=2012)
	  {
	    Year.nextDay();
	  }
	  else
	  {
	  	System.out.println("日期只能在1812年至2012年之间。");
	  }
	}
	public static void nextDay()
	{
			switch (month)
			{
			  case 1:if(day>31)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==31)
			  				{
			  					System.out.println(year+"-2-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			  case 2:	if (Year.isLeapYear(year))
			          {
			          		if(day>29)
			  						{
			  								System.out.println("输入日期错误!");
			  						} 
			  						else if(day==29)
			  						{
			  								System.out.println(year+"-3-1");
			  						}
			  						else
			  						{
			  								System.out.println(year+"-"+month+"-"+(day+1));
			  						}
			  						break;
			          }
			          else
			          {
			        		  if(day>28)
			  						{
			  								System.out.println("输入日期错误!");
			  						} 
			  						else if(day==28)
			  						{
			  								System.out.println(year+"-3-1");
			  						}
			  						else
			  						{
			  								System.out.println(year+"-"+month+"-"+(day+1));
			  						}
			  						break;
			  				}
			    case 3:if(day>31)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==31)
			  				{
			  					System.out.println(year+"-4-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 4:if(day>30)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==30)
			  				{
			  					System.out.println(year+"-5-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 5:if(day>31)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==31)
			  				{
			  					System.out.println(year+"-6-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 6:if(day>30)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==30)
			  				{
			  					System.out.println(year+"-7-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 7:if(day>31)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==31)
			  				{
			  					System.out.println(year+"-8-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 8:if(day>31)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==31)
			  				{
			  					System.out.println(year+"-8-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 9:if(day>30)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==30)
			  				{
			  					System.out.println(year+"-10-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 10:if(day>31)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==31)
			  				{
			  					System.out.println(year+"-10-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 11:if(day>30)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==30)
			  				{
			  					System.out.println(year+"-12-1");
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			    case 12:if(day>31)
			  				{
			  					System.out.println("输入日期错误!");
			  				} 
			  				else if(day==31)
			  				{
								if ((year+1)==2013)
								{
									System.out.println("超出规定年限。");
								}
								else
								{
			  						System.out.println((year+1)+"-1-1");
								}
			  				}
			  				else
			  				{
			  					System.out.println(year+"-"+month+"-"+(day+1));
			  				}
			  				break;
			  }			
	
	}
	public static boolean isLeapYear(int lyear)
	{
		if (( ((lyear%4==0)==true)&&((lyear%100==0)!=true))||(((lyear%100==0)==true)&&((lyear%400==0)==true)))
		{
			return true;
		}
		else
		{
			return false;
		}
	}
}