Inheritance Programs

INHERITANCE PROGRAMS 1. Single Inheritance Public Derivation class base { int a; public: int b; void getdata(void); void putdata(void); int get_value(void); void put_value(void); }; class derived:public base //Public derivation { int c; public: void sum(void); void display(void); }; void base::getdata(void) { cout<<"Enter a and b"; cin>>a>>b; } void base::putdata(void) { cout<<"a="<>a>>b; } void base::putdata(void) { cout<<"a="<>a>>b; } int base::get_value(void) { return (a); } void base::put_value(void) { cout<<"Base Class Private Member a="<
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}

/* When a base class and a derived class define a function of same name the derived class function supersedes the base class definition. the base class function will be called only if the derived class does not redefine the function*/ 4. Single Inheritance Same member function in base class derived class class base { int a; public: int b; void getdata(void); void putdata(void); int get_value(void); void put_value(void); }; class derived:public base //Public derivation { int c; public: void sum(void); void putdata(void);// same function name }; void base::getdata(void) { cout<<"Enter a and b"; cin rel="nofollow">>a>>b; } void base::putdata(void) { cout<<"base a="<>a>>b>>c; } void base::putdata(void) { cout<<"a="<>a>>b>>c; } void base::putdata(void) { cout<<"a="<>a>>b>>c; } void base::putdata(void) { cout<<"a="<>a>>b>>c; } void base::putdata(void) { cout<<"a="<
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int base::get_sum(void) { return(a); } void base::put_value(void) { cout<<"Base Class Private Member a="<>a; } void one::display_a(void){ cout<<"a="<
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cin rel="nofollow">>b>>c;

}

void display_values(void) }; class three:public two { float d; public: void display(void) { d=c+b; display_a(); display_values(); cout<<"d="<
{ cout<<"b="<>a; } void one::display_a(void){ cout<<"a="<>b>>c; }

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}

void display_values(void) { display_a(); cout<<"b="<>a; } void one::display_a(void){ cout<<"a="<
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class two : private one { protected: int b; float c; public: void get_values(void) { get_a(); cout<<"Enter b(int) and c(float) values"; cin rel="nofollow">>b>>c; } void display_values(void) { display_a(); cout<<"b="<>a; } void one::display_a(void){ cout<<"a="<>b>>c; } void display_values(void) { display_a(); cout<<"b="<>a; } class two { protected: int b; public: void get_b(void) { cout<<"Enter b"; cin>>b; }; class three:public one,public two { public: void display(void) { cout<<"a="<>a; } class two { protected: int b; public: void get_b(void) { cout<<"Enter b"; cin>>b; } }; class three:public one,private two { public: void display(void) { get_b(); cout<<"a="<
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int main() { C obj1; obj1.disp();return(0);} /* Ambiguity occurs (error) display(); - rel="nofollow"> A::display(); or B::display(); */ 16.Ambiguity resolution in Single Inheritance class A { public: void display(void) { cout<<"Class A"<<endl; } }; class B: public A { public: void display(void) { cout<<"Class B"<<endl; } }; int main() { B obj1; obj1.display(); obj1.A::display(); obj1.B::display(); } /* Ambiguity occurs (error) display (); -> obj1.A:: display(); or obj1.B::display(); */

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