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){
}
}
}