Curioustab

Objects and Classes Questions

Which of the following statement is correct about the program given below? #include<iostream.h> class CuriousTab { int x; float y; public: void Function() { x = 4; y = 2.50; delete this; } void Display() { cout<< x << " " << y; } }; int main() { CuriousTab *pCuriousTab = new CuriousTab(); pCuriousTab->Function(); pCuriousTab->Function(); pCuriousTab->Display(); return 0; }
What will be the output of the following program? #include<iostream.h> #include<string.h> class CuriousTab { char str[50]; char tmp[50]; public: CuriousTab(char *s) { strcpy(str, s); } int CuriousTabFunction() { int i = 0, j = 0; while(*(str + i)) { if(*(str + i++) == ' ') *(tmp + j++) = *(str + i); } *(tmp + j) = 0; return strlen(tmp); } }; int main() { char txt[] = "Welcome to CuriousTab.com!"; CuriousTab objCuriousTab(txt); cout<< objCuriousTab.CuriousTabFunction(); return 0; }
Which of the following statement is correct about the program given below? #include<iostream.h> class CuriousTabBase { int x, y; public: CuriousTabBase(int xx = 10, int yy = 10) { x = xx; y = yy; } void Show() { cout<< x * y << endl; } }; class CuriousTabDerived : public CuriousTabBase { private: CuriousTabBase objBase; public: CuriousTabDerived(int xx, int yy) : CuriousTabBase(xx, yy), objBase(yy, yy) { objBase.Show(); } }; int main() { CuriousTabDerived objDev(10, 20); return 0; }
What will be the output of the following program? #include<iostream.h> class A { public: void CuriousTabFunction(void) { cout<< "Class A" << endl; } }; class B: public A { public: void CuriousTabFunction(void) { cout<< "Class B" << endl; } }; class C : public B { public: void CuriousTabFunction(void) { cout<< "Class C" << endl; } }; int main() { A *ptr; B objB; ptr = &objB; ptr = new C(); ptr->CuriousTabFunction(); return 0; }

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