java - Parsing user input - getting integers from strings and exception handling -

my application have text box user edit numbers (hopefully)

i using integer.parseint() convert string integer, however, there's chance user not pass in numbers throw exception during parseint(). not sure convention error handling in gwt. work?

int number = -1; try {   number = interger.parseint(inputfromuser); } catch (exception e) {   // error handling telling user try again } 

you on right track. change exception numberformatexception , should fine.