final variable initialization

[vijayk kumar]

Does a final variable initialized in overloaded constructors differently.
Then what about the necessity of intializing a variable at the declartion?

[ramesh kumar]

we can only initialize final variables once.

[Tanka Banerjee]

Do it. final can't be reintialized

[Jim Yingst]

I'm not sure what these guys are celebrating with their . But to answer the question in a useful way, there is no requirement to initialize a final variable at declaration. For an instance variable, the requirement is that it needs to be assigned before the constructor completes. If you want t assign a final variable in a constructor, you must not assign it at declaration, since a final variable may be assigned only once. vijayk, does that answer your question?

[Dana Bothner-By]

Hmmm... Your first sentense no verb.

Anyway, don't forget to assign a value in *every* constructor:

public class Test {
    private final int x;
 
    public Test() {
x = 1;
}
 
public Test(String param) {
//x = 2; //uncomment to remove syntax error
}
}

[marc weber]

"rammy,"

Please see Henry's warning about your display name under this other post. Basically, we need a last name too. Thanks!

(So far, you've used in 100% of your posts. :roll: )

[Tony Morris]

Jim covered final fields. Final locals need never be assigned, but must be "definitely assigned" before they are used.