C++ Questions Try it Yourself

1) Determine the output of the 'C++' Codelet.                    class base             {              public :                         out()                         {                                     cout<<"base ";                          }              };             class deri{             public : out()             {             cout<<"deri ";             }               };             void main()             {           deri dp[3];                         base *bp = (base*)dp;                         for (int i=0; i<3;i++)                         (bp++)->out();             }     2)       Justify the use of virtual constructors and destructors in C++.     3)       Each C++ object possesses the 4 member fns,(which can be declared by the programmer explicitly or by the implementation if they are not available). What are those 4 functions?     4)        What is wrong with this class declaration?             class something             {                         char *str;                         public:                            something(){                            st = new char[10]; }                           ~something()                           {                                     delete str;                           }              };     5) Inheritance is also known as -------- relationship. Containership as   ________ relationship.     6)  When is it necessary to use member-wise initialization list  (also known as header initialization list) in C++?     7) Which is the only operator in C++ which can be overloaded but NOT inherited.     8) Is there anything wrong with this C++ class declaration?             class temp             {               int value1;               mutable int value2;               public :                         void fun(int val)                         const{                         ((temp*) this)->value1 = 10;                         value2 = 10;                         }              };