Throwing string exception with integers

[Mnelson]

Hello, Im looking for an example of how to throw an exception for an input string that;

rejects characters in the alphabet such as "abc..."
and only accepts numbers in the form of "1 2 3.."

Im fairly new to java and Im just looking for a solid example of this code.

-Nelson

[AlbertGM]

This seems homework. Please, read this

We are here to help, not to do your homework. If we give you the answer, you'll never learn. Tell us what you tried, what you don't understand or where you are stuck, and we'll be very glad to help you.

Regards,

Albert.

[javinpaul]

I guess you want to filter numeric string with alphabetic String. on homework front , mods are correct but I am giving you some hint which is applicable in general.

1) There are methods in Java API which converts String to number like Integer.parseInt(String) which can throw NumberFormatException is String can not be converted into number. there are couple of more ways to do this you can also see this link http://javarevisited.blogspot.sg/201...to-string.html.

2) For getting input from user you can use java.util.Scanner class.

try working with these information and post here if you face any issue, that would improve your learning without being stuck.