Which of the following statement is correct about the program given below? #include<iostream.h> int main() { int x = 10; int &y = x; x = 25; y = 50; cout<< x << " " << --y; return 0; }

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

#include<iostream.h> 
int main()
{
    int x = 10;
    int &y = x;
    x = 25;
    y = 50;
    cout<< x << " " << --y;
    return 0; 
}

1.The program will print the output 25 49.

2. It will result in a compile time error.

3.The program will print the output 50 50.

4.The program will print the output 49 49

Posted Date:-2021-02-24 09:30:50

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  1. Which of the following statement is correct about the program given below? #include<iostream.h> class IndiaBix { int x, y; public: void SetValue(int &a, int &b) { a = 100; x = a; y = b; Display(); } void Display() { cout<< x << " " << y; } }; int main() { int x = 10; IndiaBix objBix; objBix.SetValue(x, x); return 0; } A. B. The program will print the output 100 100. C. The program will print the output 100 garbage. D. The program will print two garbage values. E. It will result in a compile time error. A. The program will print the output 10 10. B. The program will print the output 10 11. C. The program will print the output 11 11. D. The program will print the output 11 10.
  2. What will be the output of the following program? #include<iostream.h> class BixTest { public: BixTest(int &x, int &y) { x++; y++; } }; int main() { int a = 10, b = 20; BixTest objBT(a, b); cout<< a << " " << b; return 0; }
  3. Which of the following statement is correct about the program given below? #include<iostreamh> class IndiaBix { int x, y; public: IndiaBix(int &xx, int &yy) { x = xx; y = yy; Display(); } void Display() { cout<< x << " " << y; } }; int main() { int x1 = 10; int &p = x1; int y1 = 20; int &q = y1; IndiaBix objBix(p, q); return 0;
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  5. 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; }
  6. 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; }
  7. 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; }
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