Java - checking if parseInt throws exception

Question

I\'m wondering how to do something only if Integer.parseInt(whatever) doesn\'t fail.

More specifically I have a jTextArea of user specified values seperated by line

Answer 1

parseInt will throw NumberFormatException if it cannot parse the integer. So doing this will answer your question

try{
Integer.parseInt(....)
}catch(NumberFormatException e){
//couldn't parse
}