Do you need to implement a class in order for an object to access the class's functions/methods?
When should you implement a class? When shouldn't you?
Classes are derived datatypes.
When you want to create your own datatype, with its own methods/functions for working with it, then one should implement classes.
Example : Suppose you are given a code to create a student dataype and record there information, this is a basic code while implementing class.
class student
{
int roll;
char name[25];
char add [25];
char city[90];
public:
void getdata()
{
cout<<"\n enter the student roll no.";
cin>>roll;
cout<<"\n enter the student name";
cin>>name;
cout<<"\n enter ther student address";
cin>>add;
cout<<"\n enter the student city";
cin>>city;
}
void putdata()
{
cout<,"\n the student roll no:"<<roll;
cout<<"\n the student name:"<<name;
cout<<"\n the student coty:"<<city;
}
};
rubberman 1,355
As shown by np_complete, you can implement methods of a class inline, in which case you don't need to compile them as a separate translation unit. They are truly inline code, implemented in each translation unit that uses them.