如何判断输入的文本是否日期格式-JSP教程,Java技巧及代码

try{    date.valueof(string astring);}catch(exception ex){    system.err.println("the format of string is not correct");}

或者

public class forother {    public static void main(string[] args){                simpledateformat s=new simpledateformat("yyyy-mm-dd hh:mm:ss");               string ooo="2005-02-18 15:39:15";        string ppp="2005-02-01 15:25:15";              try{        date tt=s.parse(ooo);        date yy=s.parse(ppp);        long aa;        if(tt.gettime()>yy.gettime())            aa=tt.gettime()-yy.gettime();        else            aa=yy.gettime()-tt.gettime();        long date=aa/1000/60/60/24;        system.out.println("***");        system.out.println("hahahha"+date);        system.out.println("*******");        }catch(exception e){                    }           }}