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final variable

Raju Champaklal
Ranch Hand

Joined: Dec 10, 2009
Posts: 521
If you use final keyword then you are bound to initialize that variable at declaration time, this behavior guarantees that when class Inner will use x, x will have some value, so it can copy that value to s.

If you do not use final then there is no guarantee that when inner class will use x, x will have any value.

how is this right?

final int x;

is legal then how is initilizing at the declaration time right?

this was from one of the previous posts of Punit.....

scjp 1.6 91%, preparing for scmad
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Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 62771

Please continue any discussion n that topic.

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It is sorta covered in the JavaRanch Style Guide.
subject: final variable