“Clubing data member and member function known as class.”
lets take an Example
Class A
{
Data member;
Member function;
}
If we create instance of the class in other class, that
instance cannot access member of the class
lets take an Example
Class B
{
A obj=new A();
A.Datamember; //
Error instance member cann’t access
datamember within the class
}
Solution :
Every executable statementmust be in a definition block(
inside a function , constructor)
Class B
{
A obj =new A();
Public B()
{
Obj.DataMember=value; // you can access the datamember
}