Immutable classes are in effect "constant" objects. There is no reason to have more than one instance of an immutable object.
If I declare an object to be final, does that make the object immutable?
No. Final applies to the value in memory of the object.
An object is immutable if:
1) All the attributes are primitives, and private, and
2) None of the methods are mutators.
Mixed features of classes
-features that combine static and non-static features.
-static --> class
-non static --> features in the class.
Examples:
-Instance counter: how many instances of a class have been created.
-Serial number creator: every object is stamped with a unique serial number.
Subscribe to:
Post Comments (Atom)
1 comment:
Hi Philip
Hope you having a good reading week:)
I see you using Mac too and I am a new mac user so maybe you can spare some hints
In eclipse it doesn't recognize the @pre
it says unknown tag.
Thanks
Post a Comment