Functions Questions

• Which of the following statement is correct about the program given below? #include<iostream.h> #include<string.h> #include<malloc.h> class CuriousTabString { char txtName[20]; public: CuriousTabString(char *txtTemp = NULL) { if(txtTemp != NULL) strcpy(txtName, txtTemp); } void Display(void) { cout<<txtName; } }; int main() { char *txtName = (char*)malloc(10); strcpy(txtName, "CuriousTab"); *txtName = 48; CuriousTabString objTemp(txtName); cout<< sizeof(txtName); return 0; }
• Which of the following statement is correct about the program given below? #include<iostream.h> class CuriousTab { int x, y, z; public: CuriousTab(int x = 100, int y = 30, int z = 0) { this->x = x; this->y = y; this->z = z; Display(); } void Display() { cout<< x << " " << y << " " << z; } }; int main() { int a = 0, b = 1, c = 2; int &x = ++a; int &y = --b; int z = c + b - -c; CuriousTab objCuriousTab(x, y, z); return 0; }
• What will be the output of the following program? #include<iostream.h> class TestDrive { int x; public: TestDrive(int xx) { x = xx; } int DriveIt(void); }; int TestDrive::DriveIt(void) { static int value = 0; int m; m = x % 2; x = x / 2; if((x / 2)) DriveIt(); value = value + m * 10; return value; } int main() { TestDrive TD(1234); cout<< TD.DriveIt() * 10 << endl; return 0; }
• What will be the output of the following program? #include<iostream.h> int main() { float Amount; float Calculate(float P = 5.0, int N = 2, float R = 2.0); Amount = Calculate(); cout<< Amount << endl; return 0; } float Calculate(float P, int N, float R) { int Year = 1; float Sum = 1 ; Sum = Sum * (1 + P * ++N * R); Year = (int)(Year + Sum); return Year; }
• Which of the following statement is correct about the program given below? #include<iostream.h> class PowerFinder { public: void Power(int x = 1, int y = 1) { int P = 1, i = 1; while(++i <= y) { P *= x; } cout<< P << endl; } }; int main() { PowerFinder FP; FP.Power(2, 6); return 0; }
• What will be the output of the following program? #include<iostream.h> class BaseCounter { protected: long int count; public: void CountIt(int x, int y = 10, int z = 20) { count = 0; cout<< x << " " << y << " " << z << endl; } BaseCounter() { count = 0; } BaseCounter(int x) { count = x ; } }; class DerivedCounter: public BaseCounter { public: DerivedCounter() { } DerivedCounter(int x): BaseCounter(x) { } }; int main() { DerivedCounter objDC(30); objDC.CountIt(40, 50); return 0; }
• Which of the following statement is correct about the program given below? #include<iostream.h> class CuriousTabArray { int array[3][3]; public: CuriousTabArray(int arr[3][3] = NULL) { if(arr != NULL) for(int i = 0; i < 3; i++) for(int j = 0; j < 3; j++) array[i][j] = i+j; } void Display(void) { for(int i = 0; i < 3; i++) for(int j = 0; j < 3; j++) cout<< array[i][j] << " "; } }; int main() { CuriousTabArray objBA; objBA.Display(); return 0; }
• What will be the output of the following program? #include<iostream.h> void MyFunction(int a, int b = 40) { cout<< " a = "<< a << " b = " << b << endl; } int main() { MyFunction(20, 30); return 0; }
• What will be the output of the following program? #include<iostream.h> typedef void(*FunPtr)(int); int Look(int = 10, int = 20); void Note(int); int main() { FunPtr ptr = Note; (*ptr)(30); return 0; } int Look(int x, int y) { return(x + y % 20); } void Note(int x) { cout<< Look(x) << endl; }
• Which of the following statement is correct about the program given below? #include<iostream.h> long GetNumber(long int Number) { return --Number; } float GetNumber(int Number) { return ++Number; } int main() { int x = 20; int y = 30; cout<< GetNumber(x) << " "; cout<< GetNumber(y) ; return 0; }
• What will be the output of the following program? #include<iostream.h> int CuriousTabFunction(int a, int b = 3, int c = 3) { cout<< ++a * ++b * --c ; return 0; } int main() { CuriousTabFunction(5, 0, 0); return 0; }
• What will be the output of the following program? #include<iostream.h> #include<string.h> class CuriousTab { char txtMsg[50]; public: CuriousTab(char *str = NULL) { if(str != NULL) strcpy(txtMsg, str); } int CuriousTabFunction(char ch); }; int CuriousTab::CuriousTabFunction(char ch) { static int i = 0; if(txtMsg[i++] == ch) return strlen((txtMsg + i)) - i; else return CuriousTabFunction(ch); } int main() { CuriousTab objCuriousTab("Welcome to CuriousTab.com!"); cout<< objCuriousTab.CuriousTabFunction('t'); return 0; }
• 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> long CuriousTabFunction(int x, int y = 5, float z = 5) { return(++x * ++y + (int)++z); } int main() { cout<< CuriousTabFunction(20, 10); 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> const double CuriousTabConstant(const int, const int = 0); int main() { const int c = 2 ; cout<< CuriousTabConstant(c, 10)<< " "; cout<< CuriousTabConstant(c, 20)<< endl; return 0; } const double CuriousTabConstant(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 Base { public: int S, A, M; Base(int x, int y) { S = y - y; A = x + x; M = x * x; } Base(int, int y = 'A', int z = 'B') { S = y; A = y + 1 - 1; M = z - 1; } void Display(void) { cout<< S << " " << A << " " << M << endl; } }; class Derived : public Base { int x, y, z; public: Derived(int xx = 65, int yy = 66, int zz = 67): Base(x) { x = xx; y = yy; z = zz; } void Display(int n) { if(n) Base::Display(); else cout<< x << " " << y << " " << z << endl; } }; int main() { Derived objDev; objDev.Display(-1); return 0; }
• Which of the following statement is correct about the program given below? #include<iostream.h> struct MyStructure { class MyClass { public: void Display(int x, float y = 97.50, char ch = 'a') { cout<< x << " " << y << " " << ch; } }Cls; }Struc; int main() { Struc.Cls.Display(12, 'b'); return 0; }
• Which of the following statement is correct about the program given below? #include<iostream.h> static int b = 0; void DisplayData(int *x, int *y = &b) { cout<< *x << " " << *y; } int main() { int a = 10, b = 20 ; DisplayData(&a, &b); return 0; }
• What will be the output of the following program? #include<iostream.h> class CuriousTab { int Num; public: CuriousTab(int x) { Num = x; } int CuriousTabFunction(void); }; int CuriousTab::CuriousTabFunction(void) { static int Sum = 0; int Dec; Dec = Num % 10; Num = Num / 10; if((Num / 100)) CuriousTabFunction(); Sum = Sum * 10 + Dec; return Sum; } int main() { CuriousTab objCuriousTab(12345); cout<< objCuriousTab.CuriousTabFunction(); return 0; }