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

It would be something like this.

String text = textArea.getText();
Scanner reader = new Scanner(text).useDelimiter("\n");
while(reader.hasNext())
    String line = reader.next();

    try{
        Integer.parseInt(line);
        //it worked
    }
    catch(NumberFormatException e){
       //it failed
    }
}