count.java

一个关于学校网站的java实现程序,非常不错.可以运行.

/*
 * Created on 2004-12-6
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
package com.bwm.time;

import java.util.StringTokenizer;
/***************************************************
	*class explain:	Count time<br>
	*set up name:	crazyadept<br>
	*set up time:	12/06/004
****************************************************/
public class Count {

	private Time nowtime;
	private StringTokenizer st=null;
	private String array[]=null;
	private String narray[]=null;
	private int num=0;
	private int nnum=0;
	private String nstr;
	/***************************************************
		*return value:	value<0 :	less than now time<br>
		*				value=0 :	equas now time<br>
		*				value>0 :   more than now time<br>
		*parameter:		year:month:date<br>
		*set up name:	crazyadept<br>
		*set up time:	12/10/2004<br>
		*change time:	12/07/2004
	****************************************************/
	public int compareTime(String str){
		try{
			st=new StringTokenizer(str,"-");
			num=st.countTokens();
			array=new String[num];
			//decompose str
			str="";
			for(int i=0;st.hasMoreElements();i++){
				array[i]=st.nextToken();
				if(array[i].length()==1){
					array[i]="0"+array[i];
				}
				str=str+array[i]+"-";
			}
			nowtime=new Time();
			nstr=nowtime.getYMD();
			st=new StringTokenizer(nstr,"-");
			nnum=st.countTokens();
			narray=new String[nnum];
			nstr="";
			for(int i=0;st.hasMoreElements();i++){
				narray[i]=st.nextToken();
				if(narray[i].length()==1){
					narray[i]="0"+narray[i];
				}
				nstr=nstr+narray[i]+"-";
			}
		}catch(Exception e){
			System.err.print(e.getMessage());
			e.printStackTrace();
		}
		return	str.compareTo(nstr); 
	}
	/***************************************************
		*return value:	year:month:date<br>
		*parameter:		year:month:date and prolong month<br>
		*set up name:	crazyadept<br>
		*set up time:	12/07/2004<br>
		*change time:	12/07/2004
	****************************************************/
	public String addMonth(String str,int j){
		if(j<=0){
			return str;
		}
		st=new StringTokenizer(str,"-");
		num=st.countTokens();
		array=new String[num];
		try{
			//decompose str
			for(int i=0;st.hasMoreElements();i++){
				array[i]=st.nextToken();
			}
			int year=Integer.parseInt(array[0]);
			int month=Integer.parseInt(array[1])+j;
			//add year and month
			if(month>=12){
				int mod=month%12;
				if(mod==0){
					year=year+month/12;
					month=12;
				}else{
					year=year+month/12;
					month=mod;
				}
			}
			array[0]=(new Integer(year)).toString();
			array[1]=(new Integer(month)).toString();
			if(array[1].length()==1){
				array[1]="0"+array[1];
			}
			if(array[2].length()==1){
				array[2]="0"+array[2];
			}
			//compose str
			str="";
			for(int i=0;i<num;i++){
				str=str+array[i]+"-";
			}
			str=str.substring(0,str.length()-1);
		}catch(Exception e){
			System.err.print(e.getMessage());
			e.printStackTrace();
		}
		return str;
	}
}