日期.java

java源程序,两个类之间的函数转换,实现相应功能

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package 阶段练习一;

/**
 *
 * @author lenovo
 */
public  class  日期
{ int year,month,day;
   日期(int a,int b,int c)
   { year=a;
     month=b;
     day=c;
   }
   int 日期错误()
   { if(month<0||month>12||day<0||day>31) return 0;
     else return 1;
   }
   int 闰年()
   { if(year%4==0||year%100!=0||year%400==0)return 1;
     else return 0;//能被4整除并且不能被100整除或者是能被400整除的为闰年//
   }
   int 每月天数()
   { switch (month)
     {   case 1:
         case 3:
         case 5:
         case 7:
         case 8:
         case 10:
         case 12: return 31;
         case 4:
         case 6:
         case 9:
         case 11: return 30;
         case 2: {if(闰年()==1) return 29; else return 28;}
         default: break;
     }
     return 0;
   }

}