checdate.java

日期类 实现日期 时间的类

package checdateapi;
import java.util.StringTokenizer;

public class CHECDate {
 public  final static int   FLAG_YEAR=6;
 public  final static int   FLAG_MONTH=5;
  public final static int   FLAG_DAY=4;

  int  year;
   int month;
   int day;

    public CHECDate() {
      year=0;
      month=0;
      day=0;
    }
    public CHECDate(int h,int m,int s) {
      year=h;
      month=m;
      day=s;
    }


    public  void  setYear(int y){
      year=y;
    }
    public int getYear(){
      return year;
    }
    public  void  setMonth(int m){
      month=m;
    }
    public int getMonth(){
      return month;
    }
    public  void  setDay(int d){
      day=d;
    }
    public int getDay(){
      return day;
    }


    public  String toString(){
         String rtString;
         if (year<10)  {
           rtString="0"+Integer.toString(year);
         }
         else{
           rtString=Integer.toString(year);

         }
         if (month<10)  {
           rtString=rtString+"-0"+ Integer.toString(month);
         }
         else{
           rtString=rtString+"-" + Integer.toString(month);
         }
         if (day<10)  {
           rtString=rtString+"-0"+ Integer.toString(day);
         }
         else{
           rtString=rtString+"-" + Integer.toString(day);
         }

      return  rtString;
    }

    public void  setDate(int y,int m,int d){
      year=y;
      month=m;
      day=d;
    }
    public void setDate(String strTime){
     strTime.trim();
     if(strTime.length()>7 & strTime.length()<11)
     {
      StringTokenizer st = new StringTokenizer(strTime.trim(),"-");
      String []str=new String[4];
      int count=0;
      while (st.hasMoreTokens()) {
        if(count>2)  break;
        str[count]=(String)st.nextElement();
         count++;
       }
       if(count>1){
         year=Integer.parseInt(str[0]);
         month=Integer.parseInt(str[1]);
         day=Integer.parseInt(str[2]);

       }
     }
    }
    public void setDate(CHECDate cd){
        year=cd.getYear();
        month=cd.getMonth();
        day=cd.getDay();
      }
    /*  public boolean equal(CHECDate cd){
        boolean b=false;
        if(year==cd.getYear()  &&
            month==cd.getMonth() &&
            day ==cd.getDay()
           )
        {
          b=true;
        }

        return b;
   }
   */
      public  CHECDate nextDay(){
   int y=2001,m=1,d=1;

   if (month==12  &&  day==31){
     y=year+1;
     m=1;
     d=1;
   }
   else if((month==1 ||
           month==3   ||
           month==5   ||
           month==7   ||
           month==8   ||
           month==10 ) &&
           day==31
           ){
          y=year;
          m=month+1;
          d=1;
   }
   else if((month==4 ||
           month==6   ||
           month==9   ||
           month==11  )&&
           day==30
           ){
          y=year;
          m=month+1;
          d=1;
   }
   else if( (year %4)==0 &&
            month==2 &&
            day==29
            ){
            y=year;
            m=month+1;
            d=1;
   }
   else if( (year %4)!=0 &&
            month==2 &&
            day==28
            ){
            y=year;
            m=month+1;
            d=1;
   }

   else{
        y=year;
        m=month;
        d=day+1;
   }
   CHECDate rd=new CHECDate(y,m,d);
   return rd;
 }
 public  CHECDate beforeDay(){
  int y=2001,m=1,d=1;

  if (month==1&&  day==1){
    y=year-1;
    m=12;
    d=31;
  }
  else if((month==12 ||
          //month==3   &&
          month==5   ||
          month==7   ||
          //month==8   &&
          month==10  )&&
          day==1
          ){
         y=year;
         m=month-1;
         d=30;
  }
  else if ((month==2   ||
          month==4 ||
          month==6   ||
          month==8    ||
          month==9   ||
          month==11  )&&

          day==1
          ){
         y=year;
         m=month-1;
         d=31;
  }
  else if( (year %4)==0 &&
           month==3 &&
           day==1
           ){
           y=year;
           m=month-1;
           d=29;
  }
  else if( (year %4)!=0 &&
           month==3 &&
           day==1
           ){
           y=year;
           m=month-1;
           d=28;
  }

  else{
       y=year;
       m=month;
       d=day-1;
  }
  CHECDate rd=new CHECDate(y,m,d);
  return rd;
   }


   public  int getMaxDays()
    {
      return  getMaxDays(year,month);
    }
  public  int getMaxDays(int yyyy,int mm)
   {
    int maxDays=30;
       if((mm==1 ||
          //month==3   &&
          mm==3  ||
          mm==5   ||
          //month==8   &&
          mm==7 ||
          mm==8 ||
          mm==10 ||
          mm==12

          )
          ){

         maxDays=31;
  }
  else if ((//month==2   ||
          mm==4 ||
          mm==6   ||
          mm==9   ||
          mm==11  )
          ){
         maxDays=30;
  }
  else if( (yyyy %4)==0 &&
           mm==2
           ){
           maxDays=29;
  }
  else if( (yyyy%4)!=0 &&
           mm==2
           ){
           maxDays=28;
  }

return maxDays;
   }
      /*
   public  CHECDate nextDay(){
     int y=2001,m=1,d=1;

     if (month==12  &&  day==31){
       y=year+1;
       m=1;
       d=1;
     }
     else if(month==1 &&
             month==3   &&
             month==5   &&
             month==7   &&
             month==8   &&
             month==10  &&
             day==31
             ){
            y=year;
            m=month+1;
            day=1;
     }
     else if(month==4 &&
             month==6   &&
             month==9   &&
             month==11   &&
             day==30
             ){
            y=year;
            m=month+1;
            day=1;
     }
     else if( (year %4)==0 &&
              month==2 &&
              day==29
              ){
              y=year;
              m=month+1;
              day=1;
     }
     else if( (year %4)!=0 &&
              month==2 &&
              day==28
              ){
              y=year;
              m=month+1;
              day=1;
     }

     else{
          y=year;
          m=month;
          d=day+1;
     }
     CHECDate rd=new CHECDate(y,m,d);
     return rd;
   }
   public  CHECDate beforeDay(){
    int y=2001,m=1,d=1;

    if (month==1&&  day==1){
      y=year-1;
      m=12;
      d=31;
    }
    else if(month==12 &&
            //month==3   &&
            month==5   &&
            month==7   &&
            //month==8   &&
            month==10  &&
            day==1
            ){
           y=year;
           m=month-1;
           day=30;
    }
    else if (month==2   &&
            month==4 &&
            month==6   &&
            month==8    &&
            month==9   &&
            month==11   &&

            day==1
            ){
           y=year;
           m=month-1;
           day=31;
    }
    else if( (year %4)==0 &&
             month==3 &&
             day==1
             ){
             y=year;
             m=month-1;
             day=29;
    }
    else if( (year %4)!=0 &&
             month==3 &&
             day==1
             ){
             y=year;
             m=month-1;
             day=28;
    }

    else{
         y=year;
         m=month;
         d=day-1;
    }
    CHECDate rd=new CHECDate(y,m,d);
    return rd;
   }
   */
   //操作，大于，大于等于，小于，小于等于

   //public  long timeAdd(int s){

   //}
   public boolean equal(CHECDate t){
       return getStamp()==t.getStamp() ?  true:false;
   }
   public  boolean dateUpper(CHECDate t){
     return getStamp()>t.getStamp() ?  true:false;
}
public  boolean dateLower(CHECDate t){
  return getStamp()<t.getStamp() ?  true:false;
}
public  boolean dateLowerEqual(CHECDate t){
  return getStamp()<=t.getStamp() ?  true:false;
}
public  boolean dateUpperEqual(CHECDate t){
return getStamp()>=t.getStamp() ?  true:false;
}

  /* public  boolean dateUpper(CHECDate t){
     if(year>t.getYear()){
       return true;
     }
     else  if((year==t.getYear())&(month>t.getMonth())){
       return true;
     }
     else if((year==t.getYear())&(month==t.getMonth()) & (day>t.getDay()))
     {
       return true;
     }
     return false;
}
public  boolean dateLower(CHECDate t){
   if(year<t.getYear()){
     return true;
   }
   else if((year==t.getYear()) & (month<t.getMonth())){
     return true;
   }
   else  if((year==t.getYear()) & (month==t.getMonth()) &(day<t.getDay()))
   {
     return true;
   }
   return false;
}
public  boolean dateLowerEqual(CHECDate t){
   if(dateLower(t) || equal(t)) return true;
   return false;
}
public  boolean dateUpperEqual(CHECDate t){
  if(dateUpper(t) || equal(t)) return true;
  return false;
}
*/
public  CHECDate  add(long d){
    CHECDate rtd=new CHECDate(year,month,day);
    if(d>0)
    {
    for(int i=0;i<d;i++){
      rtd=rtd.nextDay();
    }
    }
    else if(d<0)
    {
      for(int i=0;i<(-1)*d;i++){
        rtd=rtd.beforeDay();
      }

    }
    return rtd;
}


public  CHECDate  add(int flag,long d){
    CHECDate rtd=new CHECDate(year,month,day);
   if(flag==FLAG_DAY)
   {
    if(d>0)
     {
      for(int i=0;i<d;i++){
      rtd=rtd.nextDay();
        }
     }
     else if(d<0)
     {
       for(int i=0;i<(-1)*d;i++){
       rtd=rtd.beforeDay();
         }

     }
   }
   else if(flag==FLAG_MONTH)
   {
     int m=rtd.getMonth();
     int y=rtd.getYear();
     int tm=m+(int)d;
     int nm=tm%12;
     int ny=tm/12;

     if(nm<=0)
     {
       nm=12;
       ny--;
     }
     rtd.setMonth(nm);
     rtd.setYear(y+ny);


     }
   else if(flag==FLAG_YEAR)
   {
     int y=rtd.getYear();
      rtd.setYear(y+(int)d);
   }
   /*
   int tmpDay=rtd.getDay();
   int maxDays=rtd.getMaxDays(rtd.getYear(),rtd.getMonth());
   if(tmpDay>maxDays)
     rtd.setDay(maxDays);
*/
 return rtd;
}

public  CHECDate diff(long d){
    CHECDate rtd=new CHECDate(year,month,day);
    for(int i=0;i<d;i++){
      rtd=rtd.beforeDay();
    }
    return rtd;
}
public long  diffDate(CHECDate d){
   int  a[]={31,28,31,30,31,30,31,31,30,31,30,31};
   int  b[]={31,29,31,30,31,30,31,31,30,31,30,31};

   long ds=0;
   int y1,m1, d1;
   int y2,m2,d2;
   boolean f=false;
   int days=0;
   int mc=0;
   if (equal(d)) return 0;

   if(dateUpper(d)){
     y1=year;
     m1=month;
     d1=day;
     y2=d.getYear();
     m2=d.getMonth();
     d2=d.getDay();
   }
   else{

     y2=year;
     m2=month;
     d2=day;
     y1=d.getYear();
     m1=d.getMonth();
     d1=d.getDay();
     f=true;
   }

    int dy=y1-y2;
    if(dy>1){
      for(int  i=1;i<dy;i++)
      {
        int tmpy=y2+i;
         if((tmpy%4)==0){
            days+=366;
         }
         else  days+=365;

      }
     // tmpdyy=y2+1;
    }
    if(y1>y2){
       mc=m1-m2+12;
    }
    else
    {
      mc=m1-m2;
    }
    for(int  i=0;i<mc;i++)
    {
      int kk=i+m2;
      if(kk<13){
          if((y2%4)==0)
          {
           days+=b[kk-1];
           }
           else  {
             days+=a[kk-1];
           }
      }
       else
       {
         if((y1%4)==0)
                  {
                   days+=b[kk%13];
                   }
                   else  days+=a[kk%13];

       }
    }
    days+=d1-d2;
    if(f) days*=-1;
    return days;
}
private boolean  illegalMonth(){
  if(month>12 & month<1)
  {
    month=1;
    return true;
  }

  return false;

}
public long  getStamp()
{
  return (year*100+month)*100+day;
}

}