Exception with objects in an array

Question

I have a mini-project and a lot of classes. I created an exception for a field, it doesn't work

public C(..., int yearX, ...) throws InitException {
        if (year == 2000) {
            ...
            year = yearX;
            ...
        } else
            throw new InitAnneeEC();
    }

Might be a little easier if it's in English . . but you also should make the code smaller, i.e narrow down where the issue is — Caffeinated
– Caffeinated, Commented Mar 13, 2013 at 2:17
I think you don't understand the purpose of exceptions. If you throw an exception in a method or constructor, that method or constructor exits immediately. If it's a constructor, the object construction fails, and it's as if the object was never created. It sounds to me like that's what you're complaining about -- but actually, that's exactly how it's supposed to work, and in fact, that's the only reason to ever throw an exception from a constructor: if you want to cancel creation of the object. — Ernest Friedman-Hill
– Ernest Friedman-Hill, Commented Mar 13, 2013 at 2:18
When an exception is thrown from the constructor of an object, it's expected that it will not be initialised. What do you want to happen? — Simon MᶜKenzie
– Simon MᶜKenzie, Commented Mar 13, 2013 at 2:20

mpluse · Accepted Answer · 2013-03-13 04:03:41Z

2

Your problem is in your constructor you compare year but you don't set it's value first, so the exception always happen.

    public C(..., int yearX, ...) throws InitException {
        if (year == 2000) {
            ...
            year = yearX;
            ...
        } else
            throw new InitAnneeEC();
    }

When you doing if (year == 2000) actually it's used the default value: 0, so the comparison always false. I guess you want to set anneeEC value with anneeE value.

Try to change your code like this:

    public C(..., int yearX, ...) throws InitException {
        year = yearX;
        if (year == 2008) {
            ...
        } else
            throw new InitException();
    }

edited Mar 13, 2013 at 4:03

mpluse

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answered Mar 13, 2013 at 2:38

Iswanto San

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