how to avoid numberformat Exception

[sudhan reddy]

hi
this is madhu.i done one appilication.
where i connected html page to servlets.
in html page if i dont give any values for the inputs it throws numberformat exception which i dont want to throw the excepition and i want just leave that cloumn empty and continue the remaing code.that is it should not bouther whether we have given all data to the html page and should take only the given data and display the output

[Chris Beckey]

Wherever you are doing the parsing (from String to numeric) wrap it with a try..catch(NumberFormatException) and then ignore the exception (or, more likely, set the numeric to a default value). something like:

final static int defaultValue = 0;
int numeric;    
try{numeric = Integer.parse(stringValue);}
catch(NumberFormatException nfX){numeric = defaultValue;}