Ilp C++ Final Quiz
10 Questions
| Total Attempts: 40
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C++ Final Quiz
Questions and Answers
- 1.What is the output of the following code class base{ public : virtual void func1()=0; void func2() { cout<<"\n In base, function2"; } }; //end of class class derived : public base{ public : void fun3() { cout<<"\n In derived , function3"; } };//end of class int main(){ derived d; d.fun3(); return 0; }
- A.
In derived, function1
- B.
In derived , function3
- C.
Compilation error
- D.
In base, function2
- 2.A special library function which is called automatically when no handler at any level catches the exception
- A.
Exit()
- B.
Terminate()
- C.
Quit()
- D.
Ellipse
- 3.What is the output of the following code int main() { char s1[20]="Hello"; char s2[20]="Hai"; s2=s1; cout<<"String1 : "<<s1; cout<<" String2 : "<<s2; return 0; }
- A.
String1 : Hello String2 : Hai
- B.
String1 : Hello String2 : Hello
- C.
Error : forbidden assignment of arrays
- D.
Error: incompatible types in assignment
- 4.class Test{ public: ~Test() { cout<<" Destructor"; } }; //end of class int main() { Test t; t.~Test(); return 0; }
- A.
Run time error
- B.
Destructor Destructor
- C.
Compilation error
- D.
Destructor
- 5.class VirtualClass { int x,y; public: VirtualClass() { x=1,y=2; } virtual void operator<<(ostream&); }; // end of class void VirtualClass::operator<<(ostream &os) { os<<this->x<<"\t"<<this->y; } int main() { VirtualClass vcObj; vcObj<<cout; return 0; }
- A.
1 2
- B.
Compilation error
- C.
Run time error
- D.
None of the above
- 6.int main() { int a=2,b=3; if ((a==2) || (b++==4)) cout<<"success"; return 0; } What will be the values of a and b ?
- A.
2,3
- B.
2,4
- C.
2,5
- D.
None of the above
- 7.What is the output of the below code int main(){ int i=0; for(i=0;i<20;i++) switch(i) { case 0:i+=5; case 1:i+=2; case 5:i+=5; default: i+=4; } cout<<i; return 0; }
- A.
84
- B.
5
- C.
22
- D.
16
- 8.What is the output of the following code class base{ public : virtual void display() { cout<<" \n I am in base-display ";} void virtual show() { cout<<" \n I am in base-show "; } virtual void show1(){cout<<"In base show1 ";} }; class derived : public base {}; int main(){ derived d; cout<<sizeof(d)<<"\n";}
- A.
4
- B.
8
- C.
10
- D.
16
- 9.What is the output of the following code int main(){ int i=4,j; j=i<<2; cout<<j; return 0;}
- A.
4
- B.
8
- C.
12
- D.
16
- 10.#define SQR(x) (x*x) main() { int a,b=3; a=SQR(b+2); cout<<a; return 0; }
- A.
11
- B.
25
- C.
Error
- D.
17
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