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Trắc nghiệm Ngôn Ngữ Lập Trình C++ - Bài 56

1-	Which of the following statement is correct about the program given below? #include<iostream.h> long FactFinder(long = 5); int main() { for(int i = 0; i<= 0; i++) cout<< FactFinder() << endl; return 0; } long FactFinder(long x) { if(x < 2) return 1; long fact = 1; for(long i = 1; i <= x-1; i++) fact = fact * i; return fact; }
	A -	The program will print the output 1.
	B -	The program will print the output 24.
	C -	The program will print the output 120.
	D -	The program will print the output garbage value.
2-	What will be the output of the following program? #include<iostream.h> double BixFunction(double, double, double = 0, double = 0, double = 0); int main() { double d = 2.3; cout<< BixFunction(d, 7) << " "; cout<< BixFunction(d, 7, 6) << endl; return 0; } double BixFunction(double x, double p, double q, double r, double s) { return p +(q +(r + s * x)* x) * x; }
	A -	7 20
	B -	7 19.8
	C -	7 Garbage
	D -	7 20.8
3-	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; }
	A -	21
	B -	22
	C -	31
	D -	32
4-	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; }
	A -	2 4
	B -	6 8
	C -	The program will report error on Compilation.
	D -	The program will report error on Linking.
5-	Which of the following statement is correct about the program given below? #include<iostream.h> class IndiabixSample { private: int AdditionOne(int x, int y = 1) { return x * y; } public: int AdditionTwo(int x, int y = 1) { return x / y; } }; int main() { IndiabixSample objBix; cout<<objBix.AdditionOne(4, 8)<<" "; cout<<objBix.AdditionTwo(8, 8); return 0; }
	A -	The program will print the output 32 0.
	B -	The program will print the output 32 garbage-value.
	C -	The program will print the output 32 1.
	D -	The program will report compile time error.
6-	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; }
	A -	The program will print the output M = 130.
	B -	The program will print the output M = 195.
	C -	The program will print the output M = -21.
	D -	The program will print the output M = -61.
7-	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; }
	A -	300
	B -	200
	C -	Garbage value
	D -	400
8-	What will be the output of the following program? #include<iostream.h> class IndiaBix { int Num; public: IndiaBix(int x) { Num = x; } int BixFunction(void); }; int IndiaBix::BixFunction(void) { static int Sum = 0; int Dec; Dec = Num % 10; Num = Num / 10; if((Num / 100)) BixFunction(); Sum = Sum * 10 + Dec; return Sum; } int main() { IndiaBix objBix(12345); cout<< objBix.BixFunction(); return 0; }
	A -	123
	B -	321
	C -	345
	D -	12345
9-	What is correct about the following program? #include<iostream.h> class Addition { int x; public: Addition() { x = 0; } Addition(int xx) { x = xx; } Addition operator + (int xx = 0) { Addition objTemp; objTemp.x = x + xx; return(objTemp); } void Display(void) { cout<< x << endl; } }; int main() { Addition objA(15), objB; objB = objA + 5; objB.Display(); return 0; }
	A -	The program will print the output 20.
	B -	The program will report run time error.
	C -	The program will print the garbage value.
	D -	Compilation fails due to 'operator +' cannot have default arguments.
10-	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; }
	A -	0
	B -	314
	C -	314.0000
	D -	200.0000

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