Constructor

[kaleeswaran]

hi!!
i know only the meaning of constructor is "Class name is same as method name" apart from this what is the use of constructor.it creating instant object means where we can creat an object in the constructor class itself?

[prometheuzz]

hi!!
i know only the meaning of constructor is "Class name is same as method name" apart from this what is the use of constructor.it creating instant object means where we can creat an object in the constructor class itself?

The use of constructors is explained thoroughly in this document:
http://java.sun.com/docs/books/tutorial/java/javaOO/constructors.ht ml

Good luck.

[JosAH]

hi!!
i know only the meaning of constructor is "Class name is same as method name" apart from this what is the use of constructor.it creating instant object means where we can creat an object in the constructor class itself?

I'm afraid you don't really understand (yet) what Object Oriented programming
is all about. Here's an analogy:

Suppose I want furniture; being the lazy bum I am I simply go to a carpenter
and tell him/her: "make me a table". The carpenter: being a perfect craftsman
but with no memory at all, consults a little cabinet with a few recipes:

table: a rectangular plate of wood with four poles underneath, perpendicular
to the plate. The plate of wood should end up in a horizontal position.

chair: see table description but with one extra vertical plate of wood
mounted perpendicular to the table's suface; also a bit lower than a table.

couch: see chair description but quite a bit wider.

Those three recipes are the 'Constructors' for three things: tables, chairs and
couches. The carpenter is the 'new' operator who does what must be done:
building new things: there must be a recipe with the same title as the thing
to be created. The recipe itself tells how it should be created.The three
recipes are part of desciptions of what you can do with tables, chairs or
couches; they are the blueprints for the real things and are analogous to
classes.Note that a couch is a special kind of chair which in turn is a special
kind of table. Those are the rudiments of class inheritance.

kind regards,

Jos

[JosAH]

The use of constructors is explained thoroughly in this document:
http://java.sun.com/docs/books/tutorial/java/javaOO/constructors.ht ml

Good luck.

Hi Prometheuzz, what brought you here?

kind regards,

Jos

[prometheuzz]

Hi Prometheuzz, what brought you here?

kind regards,

Jos

Well, you, of course! Your wife asked me to keep an eye on you and told me to remind you that you need to be home before 18:00 hrs!
; )

Seriously, I saw your post at SDN and was curious about this place. Read your article on sorting (nice, btw), but I'm more interested in your upcoming permutations article.

[JosAH]

Well, you, of course! Your wife asked me to keep an eye on you and told me to remind you that you need to be home before 18:00 hrs!
; )

Well, tell her that I'm home already; in my back garden to be exact. (it's nice
and sunny overhere). None of the damage is my fault. ;-)

Seriously, I saw your post at SDN and was curious about this place. Read your article on sorting (nice, btw), but I'm more interested in your upcoming permutations article.

Ah, ok, got it. The permutation article is nothing much: it's going to permute
things without much hassle, no recursion needed and it can deal with non-
unique elements too. And a bit of math stuff at the end ;-)

kind regards,

Jos