assigning values to constructor

hi,i was writing a hospital program to manage 3 types of patients.(outpatient,inpatient,daypatient)

For example for int variables. we can initially declare it as int a; then do, a=10;
can the same be done for class?

lets say we have a

Code:

---

class patient{
    private:
        int name;
        int id;
    public:
        patient(int newName,int newId);
}

---

then we have patient a;
then we have a=(name,id);

can that be done for classes ??just like it was done for int variables as show above.

thanx.

You can initialise your member variables in a constructor by using an initialisation list, e.g.,

Code:

---

class patient {
    private:
        int name;
        int id;
    public:
        patient(int newName, int newId) : name(newName), id(newId) {}
};

---

Of course, you can still do assignment if you prefer, in pretty much the same way as you would in a normal function, except that you would not declare the member variables, e.g.,

Code:

---

class patient {
    private:
        int name;
        int id;
    public:
        patient(int newName, int newId) {
            name = newName;
            id = newId;
        }
};

---

Constructor initialisation lists are usually preferred, and watch the semi-colon at the end of your class declaration.

If you are talking about how to use the constructor, then it would be as simple as:

Code:

---

patient sujeet1(1, 2);

---

Though I do not understand why you take an int for a name :)

the reason y i took a int was for example.

Code:

---

for int  we would have:

int sujeet;
sujeet=100;

so can we do like ....
patient sujeet;
//have some code to assign sujeet some data???

---

hope you all get what i meant . thanx

Look at my constructor use example for initialisation with multiple values. If you want to perform assignment of multiple values, then provide a member function to do it. If you want to perform assignent of a single value, then that can be done with the copy assignment operator and an appropriate constructor, but it is usually better to initialise instead of assign if you can.