object & instance

[gaya3]

Hi all,
What is the difference between object & Instance in Java??
Thanks in Advance

-Hamsa

[r035198x]

Hi all,
What is the difference between object & Instance in Java??
Thanks in Advance

-Hamsa

Some believe that an object is a specific/particular form of an instance.
I believe that an object is an instance of a class.
What do you believe?

[gaya3]

Some believe that an object is a specific/particular form of an instance.
I believe that an object is an instance of a class.
What do you believe?

hi,
only half i got from ur explanation.. bit confusing...
it ll be useful if u explain with any example please..

-Hamsa

[r035198x]

hi,
only half i got from ur explanation.. bit confusing...
it ll be useful if u explain with any example please..

-Hamsa

Which part is confusing you?

[dmjpro]

Hi all,
What is the difference between object & Instance in Java??
Thanks in Advance

-Hamsa

What you have, tell me first.
Explain with some examples what concept you have already.

Kind regards,
Dmjpro.

[JosAH]

To me 'object' and 'instance' are synonyms; 'instance' sounds a bit spiffier though.
The class is the blueprint and the object/instance is an instantiation (sic) of the blueprint.

kind regards,

Jos

[praveen2gupta]

Hi all,
What is the difference between object & Instance in Java??
Thanks in Advance

-Hamsa

Hi
as I understood so far Objects are derived from class and Instance is the process/mechanism which creates an object. Tell me where do you have confussion.

[JosAH]

Hi
as I understood so far Objects are derived from class and Instance is the process/mechanism which creates an object. Tell me where do you have confussion.

You're talking about "instantiat ion" here (the process of creating an instance of
a class, the instance is synonymous to an "object").

kind regards,

Jos

[kreagan]

Hi all,
What is the difference between object & Instance in Java??
Thanks in Advance

-Hamsa

An instance is an object with state. All pencils have erasers and lead. But one pencil I hold in my hand, this instance of this pencil has a pink eraser and sharp point. My brother's pencil has a blue eraser with ear wax on it (yes, pencils can be used as que tips), bite marks, and a dull point. They are both objects of the same class but different instances.

I hope that helps.

[JosAH]

An instance is an object with state.

Huh? You're confusing terms here. An object can have state but it needn't; it is
still an instance of some class.

kind regards,

Jos

[kreagan]

An object can have state but it needn't; it is
still an instance of some class.

kind regards,

Jos

An object always have a state of some sort. I might be using the term more abstractly than I should. I see it as something that seperates one instance from another instance. Even a difference in memory address could be considered as a different state, in my mind. Furthermore, all objects have an initialized state even if they don't have instance variables.

[JosAH]

An object always have a state of some sort. I might be using the term more abstractly than I should. I see it as something that seperates one instance from another instance. Even a difference in memory address could be considered as a different state, in my mind. Furthermore, all objects have an initialized state even if they don't have instance variables.

I was responding to this:

An instance is an object with state.

That implies that an object needn't have state while an instance has state. IMHO
an ojbect is an instance; both are a 'realization' of a class. I'm running out of
synonyms here.

kind regards,

Jos