References Questions

• Which of the following statement is correct about the program given below? #include int main() { int x = 80; int &y = x; x++; cout << x << " " << --y; return 0; }
• What will be the output of the program given below? #include class CuriousTabBase { int x; public: CuriousTabBase(int xx = 0) { x = xx; } void Display() { cout<< x ; } }; class CuriousTabDerived : public CuriousTabBase { int y; public: CuriousTabDerived(int yy = 0) { y = yy; } void Display() { cout<< y ; } }; int main() { CuriousTabBase objBase(10); CuriousTabBase &objRef = objBase; CuriousTabDerived objDev(20); objRef = objDev; objDev.Display(); return 0; }
• Which of the following statement is correct about the program given below? #include class CuriousTab { int x, y; public: void SetValue(int &xx, int &yy) { x = xx++; y = yy; cout<< xx << " " << yy; } }; int main() { int x = 10; int &y = x; CuriousTab objCuriousTab; objCuriousTab.SetValue(x , y); return 0; }
• Which of the following statement is correct about the program given below? #include int x, y; class CuriousTabTest { public: CuriousTabTest(int xx = 0, int yy = 0) { x = xx; y = yy; Display(); } void Display() { cout<< x << " " << y << " "; } }; int main() { CuriousTabTest 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 enum xyz { a, b, c }; int main() { int x = a, y = b, z = c; int &p = x, &q = y, &r = z; p = ++x; q = ++y; r = ++c; cout<< p << q << r; return 0; }
• Which of the following statement is correct about the program given below? #include struct Tab { short n; }; int main() { Tab b; Tab& rb = b; b.n = 5; cout << b.n << " " << rb.n << " "; rb.n = 8; cout << b.n << " " << rb.n; return 0; }
• Which of the following statement is correct about the program given below? #include class CuriousTab { int x, y; public: CuriousTab(int xx = 0, int yy = 0) { x = xx; y = yy; } void Display() { cout<< x << " " << y; } CuriousTab operator +(CuriousTab z) { CuriousTab objTemp; objTemp.x = x + z.x; objTemp.y = y + z.y; return objTemp; } }; int main() { CuriousTab objCuriousTab1(90, 80); CuriousTab objCuriousTab2(10, 20); CuriousTab objSum; CuriousTab &objRef = objSum; objRef = objCuriousTab1 + objCuriousTab2; objRef.Display(); return 0; }
• Which of the following statement is correct about the program given below? #include int main() { int m = 2, n = 6; int &x = m; int &y = n; m = x++; x = m++; n = y++; y = n++; cout<< m << " " << n; return 0; }
• Which of the following statement is correct about the program given below? #include int i, j; class CuriousTab { public: CuriousTab(int x = 0, int y = 0) { i = x; j = x; Display(); } void Display() { cout<< j <<" "; } }; int main() { CuriousTab objCuriousTab(10, 20); int &s = i; int &z = j; i++; cout<< s-- << " " << ++z; return 0; }
• Which of the following statement is correct about the program given below? #include class CuriousTab { int x, y; public: CuriousTab(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; CuriousTab objCuriousTab(p, q); return 0; }
• Which of the following statement is correct about the program given below? #include enum curioustab { a=1, b, c }; int main() { int x = c; int &y = x; int &z = x; y = b; std::cout<< z--; return 0; }
• Which of the following statement is correct about the program given below? #include class CuriousTab { 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; CuriousTab objCuriousTab; objCuriousTab.SetValue(x, x); return 0; }
• Which of the following statement is correct about the program given below? #include int main() { int arr[] = {1, 2 ,3, 4, 5}; int &zarr = arr; for(int i = 0; i <= 4; i++) { arr[i] += arr[i]; } for(i = 0; i <= 4; i++) cout<< zarr[i]; return 0; }
• Which of the following statement is correct about the program given below? #include class CuriousTab { int x, y; public: void SetValue(int &xx, int &yy) { x = xx ++; y = yy; Display(); } void Display() { cout<< x << " " << y; } }; int main() { int x = 10; int &y = x; CuriousTab objCuriousTab; objCuriousTab.SetValue(x , y); return 0; }
• Which of the following statement is correct about the program given below? #include int main() { int x = 80; int y& = x; x++; cout << x << " " << --y; return 0; }
• Which of the following statement is correct about the program given below? #include class CuriousTab { 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() { CuriousTab objCuriousTab; int x = 2; int &y = x; y = 5; objCuriousTab.SetValue(x, ++y, x + y); objCuriousTab.Display(); return 0; }
• Which of the following statement is correct about the program given below? #include int main() { int x = 10, y = 20; int *ptr = &x; int &ref = y; *ptr++; ref++; cout<< x << " " << y; return 0; }
• What will be the output of the following program? #include class CuriousTabTest { public: CuriousTabTest(int &x, int &y) { x++; y++; } }; int main() { int a = 10, b = 20; CuriousTabTest objBT(a, b); cout<< a << " " << b; return 0; }
• Which of the following statement is correct about the program given below? #include int main() { int x = 0; int &y = x; y = 5; while(x <= 5) { cout<< y++ << " "; x++; } cout<< x; return 0; }
• Which of the following statement is correct about the program given below? #include int main() { int x = 10; int &y = x; x = 25; y = 50; cout<< x << " " << --y; return 0; }