Explore topic-wise MCQs in Engineering.

What is correct about the following program?

#include<iostream.h> class Base
{ int x, y, z; public: Base() { x = y = z = 0; } Base(int xx, int yy = 'A', int zz = 'B') { x = xx; y = x + yy; z = x + y; } void Display(void) { cout<< x << " " << y << " " << z << endl; }
};
class Derived : public Base
{ int x, y; public: Derived(int xx = 65, int yy = 66) : Base(xx, yy) { y = xx; x = yy; } void Display(void) { cout<< x << " " << y << " "; Display(); }
};
int main()
{ Derived objD; objD.Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class Bix
{ public: int x;
};
int main()
{ Bix *p = new Bix(); (*p).x = 10; cout<< (*p).x << " " << p->x << " " ; p->x = 20; cout<< (*p).x << " " << p->x ; return 0;
}

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ public: void Bix(int x = 15) { x = x/2; if(x > 0) Bix(); else cout<< x % 2; } };
int main()
{ IndiaBix objIB; objIB.Bix(); return 0; }

What will be the output of the following program?

#include<iostream.h> class IndiabixSample
{ public: int a; float b; void BixFunction(int a, float b, float c = 100.0f) { cout<< a % 20 + c * --b; } }; int main()
{ IndiabixSample objBix; objBix.BixFunction(20, 2.000000f, 5.0f); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class BixBase
{ int x, y; public: BixBase(int xx = 10, int yy = 10) { x = xx; y = yy; } void Show() { cout<< x * y << endl; }
};
class BixDerived
{ private: BixBase objBase; public: BixDerived(int xx, int yy) : objBase(xx, yy) { objBase.Show(); }
};
int main()
{ BixDerived objDev(10, 20); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h>
#include<process.h> class IndiaBix
{ static int x; public: IndiaBix() { if(x == 1) exit(0); else x++; } void Display() { cout<< x << " "; }
};
int IndiaBix::x = 0; int main()
{ IndiaBix objBix1; objBix1.Display(); IndiaBix objBix2; objBix2.Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class Bix
{ int x, y; public: void show(void); void main(void);
};
void Bix::show(void)
{ Bix b; b.x = 2; b.y = 4; cout<< x << " " << y;
}
void Bix::main(void)
{ Bix b; b.x = 6; b.y = 8; b.show();
}
int main(int argc, char *argv[])
{ Bix run; run.main(); return 0; }

What will be the output of the following program?

#include<iostream.h>
#include<string.h> class IndiaBix
{ int val; public: void SetValue(char *str1, char *str2) { val = strcspn(str1, str2); } void ShowValue() { cout<< val; } };
int main() { IndiaBix objBix; objBix.SetValue((char*)"India", (char*)"Bix"); objBix.ShowValue(); return 0; }

Which of the following constructor is used in the program given below?

#include<iostream.h> class IndiaBix
{ int x, y; public: IndiaBix(int xx = 10, int yy = 20 ) { x = xx; y = yy; } void Display() { cout<< x << " " << y << endl; } ~IndiaBix() { } };
int main()
{ IndiaBix objBix; objBix.Display(); return 0;
}

What will be the output of the following program?

#include<iostream.h>
class BixBase
{ public: BixBase() { cout<< "Base OK. "; } ~BixBase() { cout<< "Base DEL. "; }
};
class BixDerived: public BixBase
{ public: BixDerived() { cout<< "Derived OK. "; } ~BixDerived() { cout<< "Derived DEL. "; }
};
int main()
{ BixBase *basePtr = new BixDerived(); delete basePtr; return 0;
}

Which of the following statement is correct about the program given below?

#include<iostream.h>
void Tester(float xx, float yy = 5.0);
class IndiaBix
{ float x; float y; public: void Tester(float xx, float yy = 5.0) { x = xx; y = yy; cout<< ++x % --y; }
};
int main()
{ IndiaBix objBix; objBix.Tester(5.0, 5.0); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h>
const double BixConstant(const int, const int = 0);
int main()
{ const int c = 2 ; cout<< BixConstant(c, 10)<< " "; cout<< BixConstant(c, 20)<< endl; return 0;
}
const double BixConstant(const int x, const int y)
{ return( (y + (y * x) * x % y) * 0.2);
}

What will be the output of the following program?

#include<iostream.h> class IndiaBix
{ int K; public: void BixFunction(float, int , char); void BixFunction(float, char, char); };
int main()
{ IndiaBix objIB; objIB.BixFunction(15.09, 'A', char('A' + 'A')); return 0;
}
void IndiaBix::BixFunction(float, char y, char z)
{ K = int(z); K = int(y); K = y + z; cout<< "K = " << K << endl; }

What will be the output of the following program?

#include<iostream.h> class AreaFinder
{ float l, b, h; float result; public: AreaFinder(float hh = 0, float ll = 0, float bb = 0) { l = ll; b = bb; h = hh; } void Display(int ll) { if(l = 0) result = 3.14f * h * h; else result = l * b; cout<< result; }
};
int main()
{ AreaFinder objAF(10, 10, 20); objAF.Display(0); return 0; }

What will be the output of the following program?

#include<iostream.h> class Point
{ int x, y; public: Point(int xx = 10, int yy = 20) { x = xx; y = yy; } Point operator + (Point objPoint) { Point objTmp; objTmp.x = objPoint.x + this->x; objTmp.y = objPoint.y + this->y; return objTmp; } void Display(void) { cout<< x << " " << y; }
};
int main()
{ Point objP1; Point objP2(1, 2); Point objP3 = objP1 + objP2; objP3.Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class IndiaBix
{ int x, y; public: IndiaBix(int xx) { x = ++xx; } ~IndiaBix() { cout<< x - 1 << " "; } void Display() { cout<< --x + 1 << " "; } };
int main()
{ IndiaBix objBix(5); objBix.Display(); int *p = (int*) &objBix; *p = 40; objBix.Display(); return 0; }

What will be the output of the following program?

#include<iostream.h>
class BixBase
{ public: BixBase() { cout<< "Base OK. "; } virtual ~BixBase() { cout<< "Base DEL. "; }
};
class BixDerived: public BixBase
{ public: BixDerived() { cout<< "Derived OK. "; } ~BixDerived() { cout<< "Derived DEL. "; }
};
int main()
{ BixBase *basePtr = new BixDerived(); delete basePtr; return 0;
}

What will be the output of the following program?

#include<iostream.h> class BixBase
{ public: int x, y; BixBase(int xx = 0, int yy = 5) { x = ++xx; y = --yy; } void Display() { cout<< --y; } ~BixBase(){} };
class BixDerived : public BixBase
{ public: void Increment() { y++; } void Display() { cout<< --y; } }; int main()
{ BixDerived objBix; objBix.Increment(); objBix.Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ int *p; public: IndiaBix(int xx, char ch) { p = new int(); *p = xx + int(ch); cout<< *p; } ~IndiaBix() { delete p; }
};
int main()
{ IndiaBix objBix(10, 'B'); return 0;
}

What will be the output of the following program?

#include<iostream.h>
class BixBase
{ public: BixBase() { cout<< "Base OK. "; }
};
class BixDerived: public BixBase
{ public: BixDerived() { cout<< "Derived OK. "; } ~BixDerived() { cout<< "Derived DEL. "; }
};
int main()
{ BixBase objB; BixDerived objD; objD.~BixDerived(); return 0;
}

What is the technical word for the function ~IndiaBix() defined in the following program?

#include<iostream.h> class IndiaBix
{ int x, y; public: IndiaBix(int xx = 10, int yy = 20 ) { x = xx; y = yy; } void Display() { cout<< x << " " << y << endl; } ~IndiaBix() { } };
int main()
{ IndiaBix objBix; objBix.Display(); return 0;
}

What will be the output of the following program?

#include<iostream.h> class A
{ public: void BixFunction(void) { cout<< "Class A" << endl; }
};
class B: public A
{ public: void BixFunction(void) { cout<< "Class B" << endl; } };
class C : public B
{ public: void BixFunction(void) { cout<< "Class C" << endl; } };
int main()
{ A *ptr; B objB; ptr = &objB; ptr = new C(); ptr->BixFunction(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class BixBase
{ int x, y; public: BixBase(int xx = 10, int yy = 10) { x = xx; y = yy; } void Show() { cout<< x * y << endl; }
};
class BixDerived : public BixBase
{ private: BixBase objBase; public: BixDerived(int xx, int yy) : BixBase(xx, yy), objBase(yy, yy) { objBase.Show(); }
};
int main()
{ BixDerived objDev(10, 20); return 0; }

What will be the output of the following program?

#include<iostream.h> class India
{ public: struct Bix { int x; float y; void Function(void) { y = x = (x = 4*4); y = --y * y; } void Display() { cout<< y << endl; } }B; }I; int main()
{ I.B.Display(); return 0;
}

What will be the output of the following program?

#include<iostream.h>
#include<string.h> class IndiaBix
{ char str[50]; char tmp[50]; public: IndiaBix(char *s) { strcpy(str, s); } int BixFunction() { 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 IndiaBix.com!"; IndiaBix objBix(txt); cout<< objBix.BixFunction(); return 0;
}

Which of the following statement is correct about the program given below?

#include<iostream.h>
#include<string.h> class IndiaBix
{ public: void GetData(char *s, int x, int y ) { int i = 0; for (i = x-1; y>0; i++) { cout<< s[i]; y--; } }
}; int main()
{ IndiaBix objBix; objBix.GetData((char*)"Welcome!", 1, 3); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class BixData
{ int x, y, z; public: BixData(int xx, int yy, int zz) { x = ++xx; y = ++yy; z = ++zz; } void Show() { cout<< "" << x++ << " " << y++ << " " << z++; } }; int main()
{ BixData objData(1, 2, 3); objData.Show(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ int x; float y; public: void Function() { x = 4; y = 2.50; delete this; } void Display() { cout<< x << " " << y; } }; int main()
{ IndiaBix *pBix = new IndiaBix(); pBix->Function(); pBix->Function(); pBix->Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class IndiaBix
{ static int count; public: static void First(void) { count = 10; } static void Second(int x) { count = count + x; } static void Display(void) { cout<< count << endl; } };
int IndiaBix::count = 0; int main()
{ IndiaBix :: First(); IndiaBix :: Second(5); IndiaBix :: Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class BixBase
{ public: float x; }; class BixDerived : public BixBase
{ public: char ch; void Process() { ch = (int)((x=12.0)/3.0); } void Display() { cout<< (int)ch; } }; int main()
{ class BixDerived *objDev = new BixDerived; objDev->Process(); objDev->Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class BixBase
{ int x, y; public: BixBase(int xx = 10, int yy = 10) { x = xx; y = yy; } void Show() { cout<< x * y << endl; }
};
class BixDerived : public BixBase
{ private: BixBase objBase; public: BixDerived(int xx, int yy) : BixBase(xx, yy) { objBase.Show(); }
};
int main()
{ BixDerived objDev(10, 20); return 0; }

What will be the output of the following program?

#include<iostream.h> struct MyData
{ public: int Addition(int a, int b = 10) { return (a *= b + 2); } float Addition(int a, float b);
};
int main()
{ MyData data; cout<<data.Addition(1)<<" "; cout<<data.Addition(3, 4); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ static int x; public: static void SetData(int xx) { x = xx; } static void Display() { cout<< x ; }
};
int IndiaBix::x = 0; int main()
{ IndiaBix::SetData(44); IndiaBix::Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class BixTeam
{ int x, y; public: BixTeam(int xx) { x = ++xx; } void Display() { cout<< --x << " "; }
};
int main()
{ BixTeam objBT(45); objBT.Display(); int *p = (int*)&objBT; *p = 23; objBT.Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ static int x; public: static void SetData(int xx) { this->x = xx; } static void Display() { cout<< x ; }
};
int IndiaBix::x = 0; int main()
{ IndiaBix::SetData(22); IndiaBix::Display(); return 0; }

Which of the following statement is correct with respect to the use of friend keyword inside a class?

Which of the following keywords is used to control access to a class member?

Which of the following statement is correct about the program given below?

#include<iostream.h> class Bix
{ int x; public: Bix(); void Show() const; ~Bix(){}
};
Bix::Bix()
{ x = 5;
}
void Bix::Show() const
{ cout<< x;
}
int main()
{ Bix objB; objB.Show(); return 0; }

What will be the output of the following program?

#include<iostream.h> int val = 0; class IndiaBix
{ public: IndiaBix() { cout<< ++val; } ~IndiaBix() { cout<< val--; } }; int main()
{ IndiaBix objBix1, objBix2, objBix3; { IndiaBix objBix4; } return 0;
}

Which of the following statement is correct regarding destructor of base class?

Which of the following two entities (reading from Left to Right) can be connected by the dot operator?

What happens when we try to compile the class definition in following code snippet?

class Birds {};
class Peacock : protected Birds {};

How can we make a class abstract?

Which of the following function prototype is perfectly acceptable?

Which of the following statement is correct about the program given below?

#include<iostream.h> int x, y; class BixTest
{ public: BixTest(int xx = 0, int yy = 0) { x = xx; y = yy; Display(); } void Display() { cout<< x << " " << y << " "; }
};
int main()
{ BixTest objBT(10, 20); int &rx = x; int &ry = y; ry = x; rx = y; cout<< rx--; return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ int a, b, c; public: void SetValue(int x, int y ,int z) { a = x; b = y; c = z; } void Display() { cout<< a << " " << b << " " << c; } }; int main()
{ IndiaBix objBix; int x = 2; int &y = x; y = 5; objBix.SetValue(x, ++y, x + y); objBix.Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> int i, j; class IndiaBix
{ public: IndiaBix(int x = 0, int y = 0) { i = x; j = x; Display(); } void Display() { cout<< j <<" "; } }; int main()
{ IndiaBix objBix(10, 20); int &s = i; int &z = j; i++; cout<< s-- << " " << ++z; return 0; }

What will be the output of the program given below?

#include<iostream.h> class BixBase
{ int x; public: BixBase(int xx = 0) { x = xx; } void Display() { cout<< x ; }
};
class BixDerived : public BixBase
{ int y; public: BixDerived(int yy = 0) { y = yy; } void Display() { cout<< y ; }
};
int main()
{ BixBase objBase(10); BixBase &objRef = objBase; BixDerived objDev(20); objRef = objDev; objDev.Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ int x, y; public: IndiaBix(int xx = 0, int yy = 0) { x = xx; y = yy; } void Display() { cout<< x << " " << y; } IndiaBix operator +(IndiaBix z) { IndiaBix objTemp; objTemp.x = x + z.x; objTemp.y = y + z.y; return objTemp; }
};
int main()
{ IndiaBix objBix1(90, 80); IndiaBix objBix2(10, 20); IndiaBix objSum; IndiaBix &objRef = objSum; objRef = objBix1 + objBix2; objRef.Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class Bix
{ int x, y; public: Bix(int x, int y) { this->x = x; this->y = y; } void Display() { cout<< x << " " << y; }
};
int main()
{ int x = 50; int &y = x ; Bix b(y, x); return 0; }