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javatry-catchidentifier

Java: what does the identifier do in the catch sentence?

I am a newbie in programming. I was learning java and I found the try/catch. I understood the and the concept very well but I have a question with the catch sentence: What does the identifier do in the catch sentence?, How does it work? How do I use it?

If you do not understand:

public class Example {

    public static void main (String[] args) {

        try {

            Integer.parseInt("m");

        }catch (Exception e) {System.out.println("ERROR");} //This identifier (e)

    }

}

Probably the answer is very obvious but i want be sure.

Solution

  • The e is the exception you should be examining or at least printing so that you know what error occurred, where and possibly why. add

    e.printStackTrace();