Java exception variable

Question

Is there any way to access exception variable lenght in catch space?

    public class myexception extends Exception{
        public int lenght;
        myexception (int a){
            this.lenght=a;
        } 
}

try{
       if(something) throw new myexception (10);
} 
catch(Exception e){System.out.println(e.lenght);}

Makoto · Accepted Answer · 2021-04-13 17:49:31Z

4

No, because e is of type Exception and not myexception, so it would not have any way of knowing what lenght is.

If you want that, then catch myexception instead of Exception.

answered Apr 13, 2021 at 17:49

Makoto

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Solal Solal · Accepted Answer · 2021-04-13 17:51:06Z

2

You would need to catch your specific exception:

try {
    if(something) throw new myexception (10);
}
catch(myexception e){
    System.out.println(e.lenght);
}

See https://beginnersbook.com/2013/04/try-catch-in-java/

answered Apr 13, 2021 at 17:51

Solal Solal

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