Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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28 cout << " In dClassOne::Display()"; 29 bClass::Display(); I3D 30 cout <« " d1s = " « d1s « endl; 31 }; void Print() 33 { 34 cout « " In dClassOne::Print()"; 35 bClass::Print(); 36 cout « " d1s = " « d1s « endl; 37 } private: 38 string d1s; 39 }; class dClassTwo : public bClass { 40 41 public: dClassTwo(string ddata = " dClassTwoData ", string bdata= " bClassDataFromD2 ") 42 43 %3D 44 :bClass(bdata), d2s(ddata) {}; 45 virtual void Display(int i) 46 { 47 48 cout <« " In dClassTwo::Display()"; bClass::Display(); cout<<"d2s="<<d2s<<"i="<<i< endl; }; private: string d2s; }; 49 50 52 void Output( bClass &R) { 54 R.Display(); } 55 56 57 int main() { bClass A("Object A"); dClassOne B("Object B"); 60 dClassTwo C("Object C", "Object C ( ObjectC_A ) "); 61 bClass *Ptr; 62 Ptr &B; Ptr->Display(); Output(A); Output(B); A = B; 63 64 65 A.Display(); 68 Ptr = &B; %3D 69 Ptr->Print(); 70 C.Display(3); 71 Ptr = &C; Ptr->Display(); return 0; } 72 73 74 m 3 m33 345 670 90l 234 O7 60 n55 555O 556 666O 6 699
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Transcribed Image Text:28 cout << " In dClassOne::Display()"; 29 bClass::Display(); I3D 30 cout <« " d1s = " « d1s « endl; 31 }; void Print() 33 { 34 cout « " In dClassOne::Print()"; 35 bClass::Print(); 36 cout « " d1s = " « d1s « endl; 37 } private: 38 string d1s; 39 }; class dClassTwo : public bClass { 40 41 public: dClassTwo(string ddata = " dClassTwoData ", string bdata= " bClassDataFromD2 ") 42 43 %3D 44 :bClass(bdata), d2s(ddata) {}; 45 virtual void Display(int i) 46 { 47 48 cout <« " In dClassTwo::Display()"; bClass::Display(); cout<<"d2s="<<d2s<<"i="<<i< endl; }; private: string d2s; }; 49 50 52 void Output( bClass &R) { 54 R.Display(); } 55 56 57 int main() { bClass A("Object A"); dClassOne B("Object B"); 60 dClassTwo C("Object C", "Object C ( ObjectC_A ) "); 61 bClass *Ptr; 62 Ptr &B; Ptr->Display(); Output(A); Output(B); A = B; 63 64 65 A.Display(); 68 Ptr = &B; %3D 69 Ptr->Print(); 70 C.Display(3); 71 Ptr = &C; Ptr->Display(); return 0; } 72 73 74 m 3 m33 345 670 90l 234 O7 60 n55 555O 556 666O 6 699
1 #include <iostream> #include <string> 3. nt using namespace std; 4 class bClass { 7 public: bClass(string data = "bClassData"):bs(data) {}; virtual void Display() 8. al 9. 10 { cout << "In bClass::Display() "; cout <« "bs = " « bs « endl; 11 12 13 }; 14 void Print() 15 { 16 cout << "In bClass::Print() "; 17 cout << "bs <« bs << endl; 18 } private: string bs; }; 19 20 21 22 class dClassOne : public bClass 23 { public: dClassOne(string data = "dClassOneData"):d1s(data) {}; virtual void Display() 24 25 26 27 { cout <« " In dClassOne::Display()"; bClass::Display(); 28 29
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Transcribed Image Text:1 #include <iostream> #include <string> 3. nt using namespace std; 4 class bClass { 7 public: bClass(string data = "bClassData"):bs(data) {}; virtual void Display() 8. al 9. 10 { cout << "In bClass::Display() "; cout <« "bs = " « bs « endl; 11 12 13 }; 14 void Print() 15 { 16 cout << "In bClass::Print() "; 17 cout << "bs <« bs << endl; 18 } private: string bs; }; 19 20 21 22 class dClassOne : public bClass 23 { public: dClassOne(string data = "dClassOneData"):d1s(data) {}; virtual void Display() 24 25 26 27 { cout <« " In dClassOne::Display()"; bClass::Display(); 28 29
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