confusion

[mike9407]

if i have a constructor like Attraction(int id,string name,int typeID):id(id),name(name),typeID(typeID){} //this is with the member list initialization
do i still need Set function for each of the attributes?

[MikeyBoy]

That's up to you. Do you want to be able to set the values of those attributes after construction, or not?

[mike9407]

but using constructor also can set values ?

[KMagic]

But if you want to modify only typeID. You got to have a set function for typeID.

[MikeyBoy]

but using constructor also can set values ?

Correct. Why wouldn't it be able to set values?

[mike9407]

if got constructor with member initialization ,why we still need a set values for the class?

[TarikNeaj]

if got constructor with member initialization ,why we still need a set values for the class?

To perhaps set the value whenever you want? Values change you know.

[MikeyBoy]

if got constructor with member initialization ,why we still need a set values for the class?

Think about it:

When can we use a constructor to set the state of an object?

When can we use a "set" method to set the state of an object?

Hopefully you should be able to understand why the two things provide different, complementary ways to set the state of an object.

[mike9407]

Set is for changing the values of attributes when needed

[MikeyBoy]

Right. So hopefully you can see the difference between that and a constructor?

[mike9407]

yes,is it my ram problem? i loaded very long sometimes,i using windows 10

[MikeyBoy]

mike9407 wrote:

yes,is it my ram problem? i loaded very long sometimes,i using windows 10

Um... what? What does that have to do with constructors and setters?

[mike9407]

Refer to my another topic ,not this topic

[MikeyBoy]

It's better if you stick to the right topic in the right thread. Otherwise, you just confuse people.

[TarikNeaj]

@MikeyBoy Maybe that has been his plan all along, considering the title.